Stingcity Games: Five Hundred
- Download and register software or subscribe for online play only. Chat and message board. Free applet.
- http://www.stingcity.com/sc/servlet/com.stingcity.web.GameInfoServlet

Julianne's 500 Club
- Play against others or the computer. Tutor for new players, in-game chat, rankings and a message forum.
- http://www.juliannegiffin.com