Montreal, Quebec-based Control Yourself, Inc. today launched Identi.ca, the open microblogging service. Users can post short messages about themselves to Identi.ca, which are then broadcast to friends in their social network using instant messages (IM), RSS feeds, and the Web.
Identi.ca is similar to existing microblogging sites such as Twitter, Jaiku, or Pownce. Unlike those services, Identi.ca's underlying software is available under an Open Source license.