diff --git a/src/main/scala/app/IndexController.scala b/src/main/scala/app/IndexController.scala
index f827492..d18b3d3 100644
--- a/src/main/scala/app/IndexController.scala
+++ b/src/main/scala/app/IndexController.scala
@@ -30,7 +30,7 @@
   get("/_user/proposals")(usersOnly {
     contentType = formats("json")
     org.json4s.jackson.Serialization.write(
-      Map("options" -> getAllUsers.filter(!_.isGroupAccount).map(_.userName).toArray)
+      Map("options" -> getAllUsers().filter(!_.isGroupAccount).map(_.userName).toArray)
     )
   })
 
diff --git a/src/main/scala/app/UserManagementController.scala b/src/main/scala/app/UserManagementController.scala
index 2a44cb9..9cf3005 100644
--- a/src/main/scala/app/UserManagementController.scala
+++ b/src/main/scala/app/UserManagementController.scala
@@ -17,8 +17,8 @@
                          url: Option[String], fileId: Option[String])
 
   case class EditUserForm(userName: String, password: Option[String], fullName: String,
-                          mailAddress: String, isAdmin: Boolean,
-                          url: Option[String], fileId: Option[String], clearImage: Boolean)
+                          mailAddress: String, isAdmin: Boolean, url: Option[String],
+                          fileId: Option[String], clearImage: Boolean, isRemoved: Boolean)
 
   case class NewGroupForm(groupName: String, url: Option[String], fileId: Option[String],
                           memberNames: Option[String])
@@ -27,47 +27,50 @@
                            memberNames: Option[String], clearImage: Boolean)
 
   val newUserForm = mapping(
-    "userName"    -> trim(label("Username"     , text(required, maxlength(100), identifier, uniqueUserName))),
-    "password"    -> trim(label("Password"     , text(required, maxlength(20)))),
-    "fullName"    -> trim(label("Full Name"    , text(required, maxlength(100)))),
-    "mailAddress" -> trim(label("Mail Address" , text(required, maxlength(100), uniqueMailAddress()))),
-    "isAdmin"     -> trim(label("User Type"    , boolean())),
-    "url"         -> trim(label("URL"          , optional(text(maxlength(200))))),
-    "fileId"      -> trim(label("File ID"      , optional(text())))
+    "userName"    -> trim(label("Username"     ,text(required, maxlength(100), identifier, uniqueUserName))),
+    "password"    -> trim(label("Password"     ,text(required, maxlength(20)))),
+    "fullName"    -> trim(label("Full Name"    ,text(required, maxlength(100)))),
+    "mailAddress" -> trim(label("Mail Address" ,text(required, maxlength(100), uniqueMailAddress()))),
+    "isAdmin"     -> trim(label("User Type"    ,boolean())),
+    "url"         -> trim(label("URL"          ,optional(text(maxlength(200))))),
+    "fileId"      -> trim(label("File ID"      ,optional(text())))
   )(NewUserForm.apply)
 
   val editUserForm = mapping(
-    "userName"    -> trim(label("Username"     , text(required, maxlength(100), identifier))),
-    "password"    -> trim(label("Password"     , optional(text(maxlength(20))))),
-    "fullName"    -> trim(label("Full Name"    , text(required, maxlength(100)))),
-    "mailAddress" -> trim(label("Mail Address" , text(required, maxlength(100), uniqueMailAddress("userName")))),
-    "isAdmin"     -> trim(label("User Type"    , boolean())),
-    "url"         -> trim(label("URL"          , optional(text(maxlength(200))))),
-    "fileId"      -> trim(label("File ID"      , optional(text()))),
-    "clearImage"  -> trim(label("Clear image"  , boolean()))
+    "userName"    -> trim(label("Username"     ,text(required, maxlength(100), identifier))),
+    "password"    -> trim(label("Password"     ,optional(text(maxlength(20))))),
+    "fullName"    -> trim(label("Full Name"    ,text(required, maxlength(100)))),
+    "mailAddress" -> trim(label("Mail Address" ,text(required, maxlength(100), uniqueMailAddress("userName")))),
+    "isAdmin"     -> trim(label("User Type"    ,boolean())),
+    "url"         -> trim(label("URL"          ,optional(text(maxlength(200))))),
+    "fileId"      -> trim(label("File ID"      ,optional(text()))),
+    "clearImage"  -> trim(label("Clear image"  ,boolean())),
+    "removed"     -> trim(label("Disable"      ,boolean()))
   )(EditUserForm.apply)
 
   val newGroupForm = mapping(
-    "groupName"   -> trim(label("Group name"   , text(required, maxlength(100), identifier, uniqueUserName))),
-    "url"         -> trim(label("URL"          , optional(text(maxlength(200))))),
-    "fileId"      -> trim(label("File ID"      , optional(text()))),
-    "memberNames" -> trim(label("Member Names" , optional(text())))
+    "groupName"   -> trim(label("Group name"   ,text(required, maxlength(100), identifier, uniqueUserName))),
+    "url"         -> trim(label("URL"          ,optional(text(maxlength(200))))),
+    "fileId"      -> trim(label("File ID"      ,optional(text()))),
+    "memberNames" -> trim(label("Member Names" ,optional(text())))
   )(NewGroupForm.apply)
 
   val editGroupForm = mapping(
-    "groupName"   -> trim(label("Group name"   , text(required, maxlength(100), identifier))),
-    "url"         -> trim(label("URL"          , optional(text(maxlength(200))))),
-    "fileId"      -> trim(label("File ID"      , optional(text()))),
-    "memberNames" -> trim(label("Member Names" , optional(text()))),
-    "clearImage"  -> trim(label("Clear image"  , boolean()))
+    "groupName"   -> trim(label("Group name"   ,text(required, maxlength(100), identifier))),
+    "url"         -> trim(label("URL"          ,optional(text(maxlength(200))))),
+    "fileId"      -> trim(label("File ID"      ,optional(text()))),
+    "memberNames" -> trim(label("Member Names" ,optional(text()))),
+    "clearImage"  -> trim(label("Clear image"  ,boolean()))
   )(EditGroupForm.apply)
 
   get("/admin/users")(adminOnly {
-    val users = getAllUsers()
+    val includeRemoved = params.get("includeRemoved").map(_.toBoolean).getOrElse(false)
+    val users = getAllUsers(includeRemoved)
+
     val members = users.collect { case account if(account.isGroupAccount) =>
       account.userName -> getGroupMembers(account.userName)
     }.toMap
-    admin.users.html.list(users, members)
+    admin.users.html.list(users, members, includeRemoved)
   })
   
   get("/admin/users/_newuser")(adminOnly {
@@ -93,7 +96,8 @@
         fullName     = form.fullName,
         mailAddress  = form.mailAddress,
         isAdmin      = form.isAdmin,
-        url          = form.url))
+        url          = form.url,
+        isRemoved    = form.isRemoved))
 
       updateImage(userName, form.fileId, form.clearImage)
       redirect("/admin/users")
diff --git a/src/main/scala/service/AccountService.scala b/src/main/scala/service/AccountService.scala
index ca36c6e..ecc4206 100644
--- a/src/main/scala/service/AccountService.scala
+++ b/src/main/scala/service/AccountService.scala
@@ -57,7 +57,12 @@
   def getAccountByMailAddress(mailAddress: String): Option[Account] =
     Query(Accounts) filter(_.mailAddress is mailAddress.bind) firstOption
 
-  def getAllUsers(): List[Account] = Query(Accounts) sortBy(_.userName) list
+  def getAllUsers(includeRemoved: Boolean = true): List[Account] =
+    if(includeRemoved){
+      Query(Accounts) sortBy(_.userName) list
+    } else {
+      Query(Accounts) filter (_.removed is false.bind) sortBy(_.userName) list
+    }
     
   def createAccount(userName: String, password: String, fullName: String, mailAddress: String, isAdmin: Boolean, url: Option[String]): Unit =
     Accounts insert Account(
@@ -77,7 +82,7 @@
   def updateAccount(account: Account): Unit = 
     Accounts
       .filter { a => a.userName is account.userName.bind }
-      .map    { a => a.password ~ a.fullName ~ a.mailAddress ~ a.isAdmin ~ a.url.? ~ a.registeredDate ~ a.updatedDate ~ a.lastLoginDate.? }
+      .map    { a => a.password ~ a.fullName ~ a.mailAddress ~ a.isAdmin ~ a.url.? ~ a.registeredDate ~ a.updatedDate ~ a.lastLoginDate.? ~ a.removed }
       .update (
         account.password, 
         account.fullName, 
@@ -86,7 +91,8 @@
         account.url,
         account.registeredDate,
         currentDate,
-        account.lastLoginDate)
+        account.lastLoginDate,
+        account.isRemoved)
 
   def updateAvatarImage(userName: String, image: Option[String]): Unit =
     Accounts.filter(_.userName is userName.bind).map(_.image.?).update(image)
diff --git a/src/main/twirl/admin/users/list.scala.html b/src/main/twirl/admin/users/list.scala.html
index df75de3..942f6ee 100644
--- a/src/main/twirl/admin/users/list.scala.html
+++ b/src/main/twirl/admin/users/list.scala.html
@@ -1,16 +1,20 @@
-@(users: List[model.Account], members: Map[String, List[String]])(implicit context: app.Context)
+@(users: List[model.Account], members: Map[String, List[String]], includeRemoved: Boolean)(implicit context: app.Context)
 @import context._
 @import view.helpers._
 @html.main("Manage Users"){
   @admin.html.menu("users"){
-    <div style="text-align: right; margin-bottom: 4px;">
+    <div class="pull-right" style="margin-bottom: 4px;">
       <a href="@path/admin/users/_newuser" class="btn">New User</a>
       <a href="@path/admin/users/_newgroup" class="btn">New Group</a>
     </div>
+    <label for="includeRemoved">
+      <input type="checkbox" id="includeRemoved" name="includeRemoved" @if(includeRemoved){checked}/>
+      Include removed users
+    </label>
     <table class="table table-bordered table-hover">
       @users.map { account =>
         <tr>
-          <td>
+          <td @if(account.isRemoved){style="background-color: #dddddd;"}>
             <div class="pull-right">
               @if(account.isGroupAccount){
                 <a href="@path/admin/users/@account.userName/_editgroup">Edit</a>
@@ -57,4 +61,11 @@
       }
     </table>
   }
-}
\ No newline at end of file
+}
+<script>
+$(function(){
+  $('#includeRemoved').click(function(){
+    location.href = '@path/admin/users?includeRemoved=' + this.checked;
+  });
+});
+</script>
\ No newline at end of file
diff --git a/src/main/twirl/admin/users/user.scala.html b/src/main/twirl/admin/users/user.scala.html
index b49d710..3a2430c 100644
--- a/src/main/twirl/admin/users/user.scala.html
+++ b/src/main/twirl/admin/users/user.scala.html
@@ -11,6 +11,12 @@
               <span id="error-userName" class="error"></span>
             </div>
             <input type="text" name="userName" id="userName" value="@account.map(_.userName)"@if(account.isDefined){ readonly}/>
+            @if(account.isDefined){
+              <label for="removed">
+                <input type="checkbox" name="removed" id="removed" value="true" @if(account.get.isRemoved){checked}/>
+                Disable
+              </label>
+            }
           </fieldset>
           @if(account.map(_.password.nonEmpty).getOrElse(true)){
             <fieldset>