Twitter is a deceptively simple technology. Sign up for an account. Invite your friends to do the same. Then, you can send each other short little messages - like the ones below - using your phone or the web. Your messages go out to everyone in your network.

2. Connecting like-minded friends over topical interests. Now that SXSWi is over, my network sends out links to things I’m interested in, like new web developments.

Twitter works really well in two ways:
1. Connecting wired friends in a compact urban environment. At South by Southwest Interactive (SXSWi) 2007, networks of people used Twitter to find out about great conferences and parties, and to meetup with each other.