<a href="http://www.qtzar.com/blogs/qtzar.nsf/d6plinks/DSLH-7KGL94">Twitter is getting more popular</a> even reaching into the enterprise. IBM has an internal system called BlueTwit and Oracle has been working on a system called OraTweet. Then there are other hosted systems available like Yammer and now DomCastr, a Lotus Domino based twitter-like server.

Try it out for yourself....
http://www.domcastr.com
Username : Demo
Account Password : demodemo