diff --git a/cmd/droned/drone.go b/cmd/droned/drone.go
index 86b6ba13..3fa3701c 100644
--- a/cmd/droned/drone.go
+++ b/cmd/droned/drone.go
@@ -86,6 +86,8 @@ func setupHandlers() {
 	m.Post("/forgot", handler.ErrorHandler(handler.ForgotPost))
 	m.Get("/reset", handler.ErrorHandler(handler.Reset))
 	m.Post("/reset", handler.ErrorHandler(handler.ResetPost))
+	m.Get("/signup", handler.ErrorHandler(handler.SignUp))
+	m.Post("/signup", handler.ErrorHandler(handler.SignUpPost))
 	m.Get("/register", handler.ErrorHandler(handler.Register))
 	m.Post("/register", handler.ErrorHandler(handler.RegisterPost))
 	m.Get("/accept", handler.UserHandler(handler.TeamMemberAccept))
diff --git a/pkg/database/schema/schema.go b/pkg/database/schema/schema.go
index 993db07e..a7241518 100644
--- a/pkg/database/schema/schema.go
+++ b/pkg/database/schema/schema.go
@@ -127,6 +127,7 @@ CREATE TABLE settings (
   ,smtp_password    VARCHAR(1024)
   ,hostname         VARCHAR(1024)
   ,scheme           VARCHAR(5)
+  ,open_invitations INTEGER
 );
 `
 
diff --git a/pkg/database/schema/schema.sql b/pkg/database/schema/schema.sql
index 95045850..39cda73a 100644
--- a/pkg/database/schema/schema.sql
+++ b/pkg/database/schema/schema.sql
@@ -112,6 +112,7 @@ CREATE TABLE settings (
     ,smtp_password    VARCHAR(1024)
     ,hostname         VARCHAR(1024)
     ,scheme           VARCHAR(5)
+    ,open_invitations INTEGER
 );
 
 CREATE UNIQUE INDEX member_uix       ON members  (team_id, user_id);
diff --git a/pkg/database/settings.go b/pkg/database/settings.go
index 0e210c99..188ac3a5 100644
--- a/pkg/database/settings.go
+++ b/pkg/database/settings.go
@@ -11,7 +11,7 @@ const settingsTable = "settings"
 // SQL Queries to retrieve the system settings
 const settingsStmt = `
 SELECT id, github_key, github_secret, bitbucket_key, bitbucket_secret,
-smtp_server, smtp_port, smtp_address, smtp_username, smtp_password, hostname, scheme
+smtp_server, smtp_port, smtp_address, smtp_username, smtp_password, hostname, scheme, open_invitations
 FROM settings WHERE id = 1
 `
 
diff --git a/pkg/handler/admin.go b/pkg/handler/admin.go
index 1d553d98..1d028f78 100644
--- a/pkg/handler/admin.go
+++ b/pkg/handler/admin.go
@@ -33,8 +33,7 @@ func AdminUserAdd(w http.ResponseWriter, r *http.Request, u *User) error {
 	return RenderTemplate(w, "admin_users_add.html", &struct{ User *User }{u})
 }
 
-// Invite a user to join the system
-func AdminUserInvite(w http.ResponseWriter, r *http.Request, u *User) error {
+func UserInvite(w http.ResponseWriter, r *http.Request) error {
 	// generate the password reset token
 	email := r.FormValue("email")
 	token := authcookie.New(email, time.Now().Add(12*time.Hour), secret)
@@ -66,6 +65,11 @@ func AdminUserInvite(w http.ResponseWriter, r *http.Request, u *User) error {
 	return RenderText(w, http.StatusText(http.StatusOK), http.StatusOK)
 }
 
+// Invite a user to join the system
+func AdminUserInvite(w http.ResponseWriter, r *http.Request, u *User) error {
+	return UserInvite(w, r)
+}
+
 // Form to edit a user
 func AdminUserEdit(w http.ResponseWriter, r *http.Request, u *User) error {
 	idstr := r.FormValue("id")
@@ -176,6 +180,8 @@ func AdminSettingsUpdate(w http.ResponseWriter, r *http.Request, u *User) error
 	settings.SmtpUsername = r.FormValue("SmtpUsername")
 	settings.SmtpPassword = r.FormValue("SmtpPassword")
 
+	settings.OpenInvitations = (r.FormValue("OpenInvitations") == "on")
+
 	// persist changes
 	if err := database.SaveSettings(settings); err != nil {
 		return RenderError(w, err, http.StatusBadRequest)
diff --git a/pkg/handler/app.go b/pkg/handler/app.go
index 73df372b..b0bfb1d1 100644
--- a/pkg/handler/app.go
+++ b/pkg/handler/app.go
@@ -47,7 +47,13 @@ func Index(w http.ResponseWriter, r *http.Request) error {
 
 // Return an HTML form for the User to login.
 func Login(w http.ResponseWriter, r *http.Request) error {
-	return RenderTemplate(w, "login.html", nil)
+	var settings, _ = database.GetSettings()
+
+	data := struct {
+		Settings *Settings
+	}{settings}
+
+	return RenderTemplate(w, "login.html", &data)
 }
 
 // Terminate the User session.
@@ -70,6 +76,18 @@ func Reset(w http.ResponseWriter, r *http.Request) error {
 	return RenderTemplate(w, "reset.html", &struct{ Error string }{""})
 }
 
+// Return an HTML form for the User to signup.
+func SignUp(w http.ResponseWriter, r *http.Request) error {
+	var settings, _ = database.GetSettings()
+
+	if settings == nil || !settings.OpenInvitations {
+		http.Redirect(w, r, "/login", http.StatusSeeOther)
+		return nil
+	}
+
+	return RenderTemplate(w, "signup.html", nil)
+}
+
 // Return an HTML form to register for a new account. This
 // page must be visited from a Signup email that contains
 // a hash to verify the Email address is correct.
@@ -144,6 +162,15 @@ func ResetPost(w http.ResponseWriter, r *http.Request) error {
 	return nil
 }
 
+func SignUpPost(w http.ResponseWriter, r *http.Request) error {
+	if !database.SettingsMust().OpenInvitations {
+		http.Redirect(w, r, "/login", http.StatusSeeOther)
+		return nil
+	}
+
+	return UserInvite(w, r)
+}
+
 func RegisterPost(w http.ResponseWriter, r *http.Request) error {
 	// verify the token and extract the username
 	token := r.FormValue("token")
diff --git a/pkg/model/settings.go b/pkg/model/settings.go
index ec7f6915..04db729f 100644
--- a/pkg/model/settings.go
+++ b/pkg/model/settings.go
@@ -27,6 +27,8 @@ type Settings struct {
 
 	// Scheme of the server, eg https
 	Scheme string `meddler:"scheme"`
+
+	OpenInvitations bool `meddler:"open_invitations"`
 }
 
 func (s *Settings) URL() *url.URL {
diff --git a/pkg/template/pages/admin_settings.html b/pkg/template/pages/admin_settings.html
index 76097d61..bc607fa5 100644
--- a/pkg/template/pages/admin_settings.html
+++ b/pkg/template/pages/admin_settings.html
@@ -33,6 +33,9 @@
 						{{ end }}
 						</select>
 						<input class="form-control form-control-xlarge" type="text" name="Domain" value="{{.Settings.Domain}}" />
+						<label class="checkbox">
+							Open invitations <input type="checkbox" name="OpenInvitations" {{ if .Settings.OpenInvitations }} checked {{ end }} />
+						</label>
 					</div>
 					<div class="form-group">
 						<div class="alert">GitHub OAuth Consumer Key and Secret</div>
diff --git a/pkg/template/pages/login.html b/pkg/template/pages/login.html
index 99b0ee5f..8c383b04 100644
--- a/pkg/template/pages/login.html
+++ b/pkg/template/pages/login.html
@@ -10,6 +10,9 @@
 		<input type="submit" value="Sign in" />
 	</div>
 	<div>
+        {{ if .Settings ne nil and .Settings.OpenInvitations }}
+        <a href="/signup">request invitation</a>&nbsp;·&nbsp;
+        {{ end }}
 		<a href="/forgot">forgot password</a>
 	</div>
 {{ end }}
diff --git a/pkg/template/pages/signup.html b/pkg/template/pages/signup.html
new file mode 100644
index 00000000..bb453826
--- /dev/null
+++ b/pkg/template/pages/signup.html
@@ -0,0 +1,51 @@
+{{ define "title" }}Sign up · drone.io{{ end }}
+
+{{ define "content" }}
+	<h1>Sign up</h1>
+	<form action="/signup" method="POST" role="form">
+		<div>
+			<input type="text" name="email" placeholder="Email address" autocomplete="off" spellcheck="false" class="form-control only-child" />
+		</div>
+		<div>
+			<div class="alert alert-success hide" id="successAlert"></div>
+			<div class="alert alert-error hide" id="failureAlert"></div>
+		</div>
+		<div>
+			<input type="submit" id="submitButton" value="Request invite" />
+		</div>
+    </form>
+{{ end }}
+
+{{ define "script" }}
+<script>
+		document.forms[0].onsubmit = function(event) {
+
+			$("#successAlert").hide();
+			$("#failureAlert").hide();
+			$('#submitButton').button('loading');
+
+			var form = event.target
+			var formData = new FormData(form);
+			xhr = new XMLHttpRequest();
+			xhr.open('POST', form.action);
+			xhr.onload = function() {
+					if (this.status == 200) {
+							var msg = "User Invitation was sent successfully";
+							if (this.responseText != "OK") {
+									msg = "Email is not currently enables. Follow the link:<br><a href='" + this.responseText + "'>" + this.responseText + "</a>";
+							}
+							$("#successAlert").html(msg);
+							$("#successAlert").show().removeClass("hide");
+							$('#submitButton').button('reset')
+
+					} else {
+							$("#failureAlert").text("Failed to send Invitation Email. " + this.response);
+							$("#failureAlert").show().removeClass("hide");
+							$('#submitButton').button('reset')
+					};
+			};
+			xhr.send(formData);
+			return false;
+				}
+	</script>
+{{ end }}
\ No newline at end of file
diff --git a/pkg/template/template.go b/pkg/template/template.go
index 76117728..d5ff5d4c 100644
--- a/pkg/template/template.go
+++ b/pkg/template/template.go
@@ -45,6 +45,7 @@ func init() {
 		"forgot.html",
 		"forgot_sent.html",
 		"reset.html",
+		"signup.html",
 		"register.html",
 		"install.html",