diff --git a/public/src/forum/admin/users.js b/public/src/forum/admin/users.js
index 212358ec9d..088cf2fa43 100644
--- a/public/src/forum/admin/users.js
+++ b/public/src/forum/admin/users.js
@@ -8,6 +8,11 @@
 			return (parent.attr('data-admin') !== "0");
 		}
 
+		function isUserBanned(element) {
+			var parent = $(element).parents('.users-box');
+			return (parent.attr('data-banned') !== "" && parent.attr('data-banned') !== "0");	
+		}
+
 		function getUID(element) {
 			var parent = $(element).parents('.users-box');
 			return parent.attr('data-uid');	
@@ -34,6 +39,20 @@
 				deleteBtn.show();
 		});
 
+		jQuery('.ban-btn').each(function(index, element) {
+			var banBtn = $(element);
+			var isAdmin = isUserAdmin(banBtn);
+			var isBanned = isUserBanned(banBtn);
+			
+			if(isAdmin)
+				banBtn.addClass('disabled');
+			else if(isBanned)
+				banBtn.addClass('btn-warning');
+			else 
+				banBtn.removeClass('btn-warning');
+
+		});
+
 		jQuery('.admin-btn').on('click', function() {
 			var adminBtn = $(this);
 			var isAdmin = isUserAdmin(adminBtn);
@@ -74,6 +93,30 @@
 			
 			return false;
 		});
+
+		jQuery('.ban-btn').on('click', function() {
+			var banBtn = $(this);
+			var isAdmin = isUserAdmin(banBtn);
+			var isBanned = isUserBanned(banBtn);
+			var parent = banBtn.parents('.users-box');
+			var uid = getUID(banBtn);
+
+			if(!isAdmin) {
+				if(isBanned) {
+					socket.emit('api:admin.user.unbanUser', uid);
+					banBtn.removeClass('btn-warning');
+					parent.attr('data-banned', 0);
+				} else {
+					bootbox.confirm('Do you really want to ban "' + parent.attr('data-username') +'"?', function(confirm) {
+						socket.emit('api:admin.user.banUser', uid);		
+						banBtn.addClass('btn-warning');
+						parent.attr('data-banned', 1);
+					});
+				}
+			}
+			
+			return false;
+		});
 	}
 
 
diff --git a/public/templates/admin/users.tpl b/public/templates/admin/users.tpl
index 17fa914b12..8d21f86c97 100644
--- a/public/templates/admin/users.tpl
+++ b/public/templates/admin/users.tpl
@@ -16,7 +16,7 @@
 
 <ul id="users-container" class="users">
 	<!-- BEGIN users -->
-	<div class="users-box" data-uid="{users.uid}" data-admin="{users.administrator}" data-username="{users.username}">
+	<div class="users-box" data-uid="{users.uid}" data-admin="{users.administrator}" data-username="{users.username}" data-banned="{users.banned}">
 		<a href="/users/{users.userslug}">
 			<img src="{users.picture}" class="img-polaroid"/>
 		</a>
@@ -37,6 +37,9 @@
 		<div>
 			<a href="#" class="btn delete-btn btn-danger">Delete</a>
 		</div>
+		<div>
+			<a href="#" class="btn ban-btn">Ban</a>
+		</div>
 	</div>
 	<!-- END users -->
 </ul>
diff --git a/src/admin/user.js b/src/admin/user.js
index 8350af24ec..88ee02f467 100644
--- a/src/admin/user.js
+++ b/src/admin/user.js
@@ -45,7 +45,7 @@ var	RDB = require('./../redis.js'),
 
 	UserAdmin.deleteUser = function(uid, theirid, socket) {
 		user.isAdministrator(uid, function(amIAdmin) {
-			user.isAdministrator(theirid, function(areTheyAdmin){
+			user.isAdministrator(theirid, function(areTheyAdmin) {
 				if(amIAdmin && !areTheyAdmin) {
 					user.delete(theirid, function(data) {
 
@@ -58,8 +58,39 @@ var	RDB = require('./../redis.js'),
 					});
 				}
 			});
+		});
+	};
+
+	UserAdmin.banUser = function(uid, theirid, socket) {
+		user.isAdministrator(uid, function(amIAdmin) {
+			user.isAdministrator(theirid, function(areTheyAdmin) {
+				if(amIAdmin && !areTheyAdmin) {
+					user.ban(theirid, function(err, result) {
 
-			
+						socket.emit('event:alert', {
+							title: 'User Banned',
+							message: 'This user is banned!',
+							type: 'success',
+							timeout: 2000
+						});
+					});
+				}
+			});			
+		});
+	};
+
+	UserAdmin.unbanUser = function(uid, theirid, socket) {
+		user.isAdministrator(uid, function(amIAdmin) {
+			if(amIAdmin) {
+				user.unban(theirid, function(err, result) {
+					socket.emit('event:alert', {
+						title: 'User Unbanned',
+						message: 'This user is unbanned!',
+						type: 'success',
+						timeout: 2000
+					});
+				});
+			}
 		});
 	};
 
diff --git a/src/categories.js b/src/categories.js
index c6a04e3108..417920b634 100644
--- a/src/categories.js
+++ b/src/categories.js
@@ -55,7 +55,8 @@ var	RDB = require('./redis.js'),
 				}
 
 				function getActiveUsers(next) {
-					user.getMultipleUserFields(active_users, ['username', 'userslug', 'picture'], function(users) {
+					user.getMultipleUserFields(active_users, ['username', 'userslug', 'picture', 'banned'], function(users) {
+						users = user.filterBannedUsers(users);
 						next(null, users);
 					});
 				}
@@ -66,7 +67,6 @@ var	RDB = require('./redis.js'),
 						categoryData.moderators = moderators;
 						categoryData.show_sidebar = 'hidden';
 						categoryData.no_topics_message = 'show';
-
 						callback(null, categoryData);
 					});
 				} else {
@@ -200,11 +200,12 @@ var	RDB = require('./redis.js'),
 				return;
 			}
 
-			posts.getPostSummaryByPids(pids, function(posts) {
-				if(posts.length > count) {
-					posts = posts.slice(0, count);
+			posts.getPostSummaryByPids(pids, function(postData) {
+				postData = posts.filterBannedPosts(postData);
+				if(postData.length > count) {
+					postData = postData.slice(0, count);
 				}
-				callback(posts);
+				callback(postData);
 			});
 		});
 	}
diff --git a/src/posts.js b/src/posts.js
index 77c983b891..12d6d95c49 100644
--- a/src/posts.js
+++ b/src/posts.js
@@ -32,12 +32,13 @@ var	RDB = require('./redis.js'),
 	}
 	
 	Posts.addUserInfoToPost = function(post, callback) {
-		user.getUserFields(post.uid, ['username', 'userslug', 'reputation', 'postcount', 'picture', 'signature'], function(userData) {
+		user.getUserFields(post.uid, ['username', 'userslug', 'reputation', 'postcount', 'picture', 'signature', 'banned'], function(userData) {
 
 			post.username = userData.username || 'anonymous';
 			post.userslug = userData.userslug || '';
 			post.user_rep = userData.reputation || 0;
 			post.user_postcount = userData.postcount || 0;
+			post.user_banned = userData.banned || '0';
 			post.picture = userData.picture || require('gravatar').url('', {}, https=global.nconf.get('https'));
 			post.signature = postTools.markdownToHTML(userData.signature, true);
 
@@ -55,7 +56,7 @@ var	RDB = require('./redis.js'),
 
 	Posts.getPostSummaryByPids = function(pids, callback) {
 		
-		var returnData = [];
+		var posts = [];
 		
 		function getPostSummary(pid, callback) {
 			Posts.getPostFields(pid, ['pid', 'tid', 'content', 'uid', 'timestamp', 'deleted'], function(postData) {
@@ -70,7 +71,7 @@ var	RDB = require('./redis.js'),
 							postData.content = utils.strip_tags(postTools.markdownToHTML(postData.content));
 
 						postData.topicSlug = topicSlug;
-						returnData.push(postData);	
+						posts.push(postData);	
 						callback(null);
 					});
 				});
@@ -80,13 +81,19 @@ var	RDB = require('./redis.js'),
 		
 		async.eachSeries(pids, getPostSummary, function(err) {
 			if(!err) {
-				callback(returnData);
+				callback(posts);
 			} else {
 				console.log(err);
 			}
 		});
 	};
 
+	Posts.filterBannedPosts = function(posts) {
+		return posts.filter(function(post) {
+			return post.user_banned === '0';
+		});
+	}
+
 	Posts.getPostData = function(pid, callback) {
 		RDB.hgetall('post:' + pid, function(err, data) {
 			if(err === null) {
diff --git a/src/routes/authentication.js b/src/routes/authentication.js
index 04fab0035f..2191ca13c7 100644
--- a/src/routes/authentication.js
+++ b/src/routes/authentication.js
@@ -6,7 +6,7 @@
 		passportFacebook = require('passport-facebook').Strategy,
 		login_strategies = [],
 		nconf = require('nconf'),
-		users = require('../user'),
+		user = require('../user'),
 		winston = require('winston'),
 		login_module = require('./../login.js');
 
@@ -143,9 +143,9 @@
 		});
 		
 		app.post('/register', function(req, res) {
-			users.create(req.body.username, req.body.password, req.body.email, function(err, uid) {
+			user.create(req.body.username, req.body.password, req.body.email, function(err, uid) {
 
-				if (err === null && uid > 0) {
+				if (err === null && uid) {
 					req.login({
 						uid: uid
 					}, function() {
diff --git a/src/routes/user.js b/src/routes/user.js
index 45b13ba0ae..1c13c1e5dc 100644
--- a/src/routes/user.js
+++ b/src/routes/user.js
@@ -67,9 +67,15 @@ var user = require('./../user.js'),
 					next();
 					return;
 				}
-				
-				app.build_header({ req: req, res: res }, function(err, header) {
-					res.send(header + app.create_route('users/'+req.params.userslug, 'account')  + templates['footer']);
+
+				user.getUserField(uid, 'banned', function(banned) {
+					if(banned && banned === '1') {
+						next();
+					} else {
+						app.build_header({ req: req, res: res }, function(err, header) {
+							res.send(header + app.create_route('users/' + req.params.userslug, 'account')  + templates['footer']);
+						});		
+					}
 				});
 			});		
 		});
@@ -321,18 +327,21 @@ var user = require('./../user.js'),
 		
 		function getUsersSortedByJoinDate(req, res) {
 			user.getUsers('users:joindate', 0, 49, function(err, data) {
-				res.json({ search_display: 'none',loadmore_display:'block', users:data });
+				data = user.filterBannedUsers(data);
+				res.json({ search_display: 'none', loadmore_display:'block', users:data });
 			});
 		}
 		
 		function getUsersSortedByPosts(req, res) {
 			user.getUsers('users:postcount', 0, 49, function(err, data) {
-				res.json({ search_display: 'none',loadmore_display:'block', users:data });
+				data = user.filterBannedUsers(data);
+				res.json({ search_display: 'none', loadmore_display:'block', users:data });
 			});
 		}
 
 		function getUsersSortedByReputation(req, res) {
 			user.getUsers('users:reputation', 0, 49, function(err, data) {
+				data = user.filterBannedUsers(data);
 				res.json({ search_display: 'none', loadmore_display:'block', users:data });
 			});
 		}
diff --git a/src/threadTools.js b/src/threadTools.js
index 1f1746d3f5..a717d6c723 100644
--- a/src/threadTools.js
+++ b/src/threadTools.js
@@ -290,16 +290,33 @@ var	RDB = require('./redis.js'),
 			var numPosts = posts.length;
 			if(!numPosts)
 				return callback(new Error('no-undeleted-pids-found'));
-				
-			while(numPosts--) {
-				if(posts[numPosts].deleted !== '1') {
-					callback(null, posts[numPosts].pid);
-					return;
+			
+			posts = posts.reverse();
+			lastPostId = 0;
+
+			function isPostVisible(post, next) {
+				if(post.deleted !== '1') {
+					user.getUserField(post.uid, 'banned', function(banned) {
+						if(banned && banned === '1') {
+							next(null);
+						} else {
+							lastPostId = post.pid
+							next(post.pid);
+							return;
+						}
+					});					
+				} else {
+					next(null);
 				}
 			}
-			
-			// If we got here, nothing was found...
-			callback(new Error('no-undeleted-pids-found'));
-		});		
+
+			async.eachSeries(posts, isPostVisible, function(err) {
+				if(err) {
+					callback(null, lastPostId);
+				} else {
+					callback(new Error('no-undeleted-pids-found'));
+				}
+			});
+		});
 	}
 }(exports));
\ No newline at end of file
diff --git a/src/topics.js b/src/topics.js
index 6a2a812de7..79e0436956 100644
--- a/src/topics.js
+++ b/src/topics.js
@@ -78,6 +78,8 @@ marked.setOptions({
 				var fav_data = results[0],
 					privileges = results[2];
 
+				postData = posts.filterBannedPosts(postData);
+
 				for(var i=0; i<postData.length; ++i) {
 					postData[i].fav_star_class = fav_data[postData[i].pid] ? 'icon-star' : 'icon-star-empty';
 					postData[i]['display_moderator_tools'] = (postData[i].uid == current_user || privileges.editable) ? 'show' : 'none';
@@ -149,7 +151,9 @@ marked.setOptions({
 				Topics.getTopicsByTids(topicIds, uid, function(topicData) {
 					unreadTopics.topics = topicData;
 					unreadTopics.nextStart = start + tids.length;
-					if(uid === 0)
+					if(!topicData || topicData.length === 0)
+						unreadTopics.no_topics_message = 'show';
+					if(uid === 0 || topicData.length === 0)
 						unreadTopics.show_markallread_button = 'hidden';
 					callback(unreadTopics);
 				});
@@ -192,9 +196,9 @@ marked.setOptions({
 		
 		function getTopicInfo(topicData, callback) {
 
-			function getUserName(next) {
-				user.getUserField(topicData.uid, 'username', function(username) {
-					next(null, username);
+			function getUserInfo(next) {
+				user.getUserFields(topicData.uid, ['username', 'banned'], function(userData) {
+					next(null, userData);
 				});
 			}
 
@@ -217,24 +221,23 @@ marked.setOptions({
 				});
 			}
 
-			async.parallel([getUserName, hasReadTopic, getTeaserInfo, getPrivileges], function(err, results) {
-				var username = results[0],
-					hasReadTopic = results[1],
-					teaserInfo = results[2],
-					privileges = results[3];
-
+			async.parallel([getUserInfo, hasReadTopic, getTeaserInfo, getPrivileges], function(err, results) {
 				callback({
-					username: username,
-					hasread: hasReadTopic,
-					teaserInfo: teaserInfo,
-					privileges: privileges
+					username: results[0].username,
+					userbanned: results[0].banned,
+					hasread: results[1],
+					teaserInfo: results[2],
+					privileges: results[3]
 				});
 			});
 		}
 
 		function isTopicVisible(topicData, topicInfo) {
 			var deleted = parseInt(topicData.deleted, 10) !== 0;
-			return !deleted || (deleted && topicInfo.privileges.view_deleted) || topicData.uid === current_user;
+			var banned = false;
+			if(topicData.userbanned)
+				banned = parseInt(topicData.userbanned, 10) !== 0;
+			return !banned && (!deleted || (deleted && topicInfo.privileges.view_deleted) || topicData.uid === current_user);
 		}
 
 		function loadTopic(tid, callback) {
@@ -252,6 +255,7 @@ marked.setOptions({
 					topicData.relativeTime = utils.relativeTime(topicData.timestamp);
 
 					topicData.username = topicInfo.username;
+					topicData.userbanned = topicInfo.userbanned;
 					topicData.badgeclass = (topicInfo.hasread && current_user != 0) ? '' : 'badge-important';
 					topicData.teaser_text = topicInfo.teaserInfo.text || '',
 					topicData.teaser_username = topicInfo.teaserInfo.username || '';
diff --git a/src/user.js b/src/user.js
index a93870c853..b6e9e943f5 100644
--- a/src/user.js
+++ b/src/user.js
@@ -41,7 +41,7 @@ var utils = require('./../public/src/utils.js'),
 				} else next();
 			}
 		], function(err, results) {
-			if (err) return callback(err, 0);	// FIXME: Maintaining the 0 for backwards compatibility. Do we need this?
+			if (err) return callback(err, null);
 
 			RDB.incr('global:next_user_id', function(err, uid) {
 				RDB.handle(err);
@@ -67,6 +67,7 @@ var utils = require('./../public/src/utils.js'),
 					'postcount': 0,
 					'lastposttime': 0,
 					'administrator': (uid == 1) ? 1 : 0,
+					'banned': 0,
 					'showemail': 0
 				});
 				
@@ -126,6 +127,14 @@ var utils = require('./../public/src/utils.js'),
 			}
 		});
 	}
+
+	User.ban = function(uid, callback) {
+		User.setUserField(uid, 'banned', 1, callback);
+	}
+
+	User.unban = function(uid, callback) {
+		User.setUserField(uid, 'banned', 0, callback);	
+	}
 	
 	User.getUserField = function(uid, field, callback) {
 		RDB.hget('user:' + uid, field, function(err, data) {
@@ -190,6 +199,12 @@ var utils = require('./../public/src/utils.js'),
 		});
 	}
 
+	User.filterBannedUsers = function(users) {
+		return users.filter(function(user) {
+			return (!user.banned || user.banned === '0');
+		});
+	}
+
 	User.updateProfile = function(uid, data, callback) {
 
 		var fields = ['email', 'fullname', 'website', 'location', 'birthday', 'signature'];
@@ -309,8 +324,8 @@ var utils = require('./../public/src/utils.js'),
 		});
 	}
 
-	User.setUserField = function(uid, field, value) {
-		RDB.hset('user:' + uid, field, value);
+	User.setUserField = function(uid, field, value, callback) {
+		RDB.hset('user:' + uid, field, value, callback);
 	}
 
 	User.setUserFields = function(uid, data) {
@@ -345,7 +360,6 @@ var utils = require('./../public/src/utils.js'),
 			async.eachSeries(uids, iterator, function(err) {
 				callback(err, data);
 			});
-			
 		});
 	}
 
diff --git a/src/websockets.js b/src/websockets.js
index 56afb02f82..723922ad23 100644
--- a/src/websockets.js
+++ b/src/websockets.js
@@ -671,6 +671,7 @@ var SocketIO = require('socket.io').listen(global.server, { log:false }),
 				if(err) {
 					winston.err(err);
 				} else {
+					data = user.filterBannedUsers(data);
 					callback({users:data});
 				}
 			});				
@@ -704,14 +705,27 @@ var SocketIO = require('socket.io').listen(global.server, { log:false }),
 			}
 		});
 
+		socket.on('api:admin.user.banUser', function(theirid) {
+			if(uid && uid > 0) {
+				admin.user.banUser(uid, theirid, socket);
+			}
+		});
+
+		socket.on('api:admin.user.unbanUser', function(theirid) {
+			if(uid && uid > 0) {
+				admin.user.unbanUser(uid, theirid, socket);
+			}
+		});
+
 		socket.on('api:admin.user.search', function(username) {
 			if(uid && uid > 0) {
 				user.search(username, function(data) {
+					data = user.filterBannedUsers(data);
 					socket.emit('api:admin.user.search', data);
 				});
-			}
-			else
+			} else {
 				socket.emit('api:admin.user.search', null);
+			}
 		});
 
 		socket.on('api:admin.themes.getInstalled', function(callback) {