TweetParty Send Tweets to Group Of People

Lets Party! Lets TweetParty! Tweetparty is another twitter api based website which allows you to send tweets to group of people. Like me for example I have group called StumbleUpon and Digg with 30 twitters in each group. Instead of sending SU, Digg URL to each one of them, this way I can send to all at one time. I also have group called Family, which I usualy use for Family news.

TweetParty is really cool and its one of the services I use the most.