From ArborWiki

Twitter in Ann Arbor. One good way to find local twitterers is to use the Terraminds searches in the 'Mentions' section.

Bots:

• a2snooze - Ann Arbor News blog feed
• a2weather - Weather from Weather Underground, weather.com, RSSWeather

Oracles:

• enjoyannarbor - eatertainment digest
• a2b3 - A2b3

Mentions:

• "Ann Arbor" / "KARB"
• "Ypsilanti" / "KYIP"