tweetaways.com —
Tweetaways.com is an easy way to pick a random winner for your next twitter contest or giveaway.
It selects a random winner from all the tweets in the Twitter stream that match your phrase and contain your @username. Duplicate entries will be removed.
After the winner is drawn, it will be posted as an @reply and a DM to you from our @tweetaways Twitter account.
read more...