TweetPhoto is a free photo sharing service for Twitter and Facebook. TweetPhoto lets you share photos on Twitter and Facebook, and allows interaction with any user or photo.

Like TwitPic, TweetPhoto lets users upload photos by e-mail, through the web, or on their mobile phones, but the similarities end there. 

Some new features that TweetPhoto has to offer include the ability to see who has viewed your photos, the option to favorite or retweet any photo, and the ability to filter photos posted by your Twitter or Facebook friends. All photos posted are automatically geo-tagged which allows for later searching of photos, and the ability to see trending tags.

Check out TweetPhoto at www.tweetphoto.com.