San Diego-based TweetPhoto is taking social media a little bit further towards “Web 3.0” time. TweetPhoto today launched a social-networking photo-sharing service, which uses Twitter and Facebook and automatically geo-tags photos sent from GPS-enabled cell phones. You can check my TweetPhoto of Bird Rock in La Jolla here. The service also provides information on who has looked at a certain pic. The site requires users to give their Twitter username and password.