Twitter for Business Resources

This list was compiled after the Twitter for Business webinar with Chris Brogan, President of New Marketing Labs. Use these link to become a Twitter power user:

To sign up:
Twitter: http://www.twitter.com

Twitter clients for your desktop:
TweetDeck: http://www.tweetdeck.com/
Seesmic Desktop: http://seesmic.com/
Atebits: http://www.atebits.com/
Twhirl: http://www.twhirl.org/

Twitter clients for multiple users:
Hootsuite: http://hootsuite.com/
CoTweet: http://cotweet.com

Twitter clients for your iPhone:
Tweetie: http://www.atebits.com/tweetie-iphone/

To search:
Twitter Search: http://search.twitter.com/

Twitter meetup tools:
Meetup: http://twitter.meetup.com/

If you have more tools or applications that you can recommend please add them to this discussion.