validates that username is not included in reserved list.

A rails gem providing naming methods for user models

This gem adds notifications to your app, you can display the notifications where you want, add a dropdown on your header for example. Add views, mailer views and go !

Add preferences to any Rails model easily by adding a text column and adding a couple macros

Basic private messaging system between users on a site

Stores and Accesses User Settings

UserShell is a tiny gem that uses the canonical approach to detect the shell for the current user, or a specified user.

Integrate the Usersnap-widget with Rails

Simple wrapper for the Userstack API https://userstack.com

User Stream Receiver.

Dynamic user stylesheets

Userswitch is a Rails plugin for switching between commonly used roles and users. It's particularly useful for development and staging environments when you often need to switch between various accounts. It saves you from the hassle of logging in or out.

Not a markup language - rather, an library for processing user-contributed text that handles the common ways in which ordinary users add meaning, structure and formatting using plain text.

A jQuery plugin provides to display time in user's timezone.

This gem lets you add a 'has_timezone' to a User, Contact or Account that has a city, state, country or zip and it will add the #timezone attribute that will automatically populate the timezone attribute.

Provide time zone support for User models in Rails applications

A much faster version of the usesguid plugin for Rails ported to a gem (uses database for GUID generation)

Prefer urandom to OpenSSL

A lightweight, dependency-free Ruby gem for accessing USGS NWIS API data (sites, instantaneous values, daily values)

An ultra portable url shortener