One of the social sites I like is twitter.com. I’ve heard about identi.ca but really haven’t tried it yet. Recently, I came across a twitter client that runs on Ubuntu that I liked a lot. It’s called Gwibber. It’s actually not just a Twitter client but also supports identi.ca, laconi.ca, digg, ping.fm, facebook and some other stuff.
It’s very easy to use and can handle multiple accounts so I’d probably try out identi.ca now that I use Gwibber. One of the things I like about Gwibber is that it lets you have your own customized theme. If you know basic HTML and CSS, it’s actually easy to customize.