On: Jaiku or Laconi.ca?

[csarven]

Laconica is theme-able see http://laconi.ca/trac/wiki/ListOfServers for some examples. It can also integrate custom Plugins which allows you to do a good range of stuff. http://army.twit.tv http://bleeper.de http://todaysmama.com/connect are few of the larger laconica communities that have custom themes and plugins implemented.