Tinychat, the web-based video chat service, just surpassed 20 million users. Founded in 2009, the company has been on a roll lately and is showing some impressive momentum. Just about a year and a half ago, after all, Tinychat only had about one million users. The company’s co-founder Dan Blake also tells us that the site currently sees about 400,000 daily users and signs up about 50,000 new users every day. The average user now spends a good 22 minutes on the site per session.