I do not know who is on twitter but I just learned some stuff from katiefreiling.com. For auto responses go to
Tools to Boost Your Social Media Productivity SocialOomph.com (used to be tweetlater), for branded backrounds go to
Free Twitter Backgrounds - Custom Twitter Backgrounds or
MyTweetSpace.com - Free Twitter Backgrounds - Brand your Twitter Profile for Free!, for shortening your url go to
www.bitly.com, there is also
Twello.com which is like a twitter yellow pages. She also suggested
TweetDeck and
Twollo: Twitter Auto-follow. All these are FREE! Also,
www.KatieFreiling .com has a 7 day FREE social media course that has alot of good information!