Broadcast server-push popup alerts to subscriber desktops. Runs continuously in background and pops up notifications from site inside an ordinary browser window. Use for

....sending alerts,
....creating subscription services,
....conducting proactive marketing,
....syndication (instead or addition to RSS),
....updating status,
....posting message of the day (MOTD)
....etc.

Download link given is a sample application. Visit www.dairgram.com for additional downloads, including development environment.