Pushlets

Pushlets: 

This site is dedicated to Pushlets, a server-to-client push technology. Read this whitepaper to get a first idea of the why, what and how and try out the Pushlet demos. Additionally, you may want to read my JavaWorld article on Pushlets.

Many other references can be found on the web (e.g. try a search on "pushlets" on Google). In print "Professional JSP" (Wrox Press 1th ed.) devotes text to Pushlets starting on page 610.

More and more Pushlets find their way into applications.