But after joining realized the figure should be 21. Mistake on the home page!
It seems that people have not quite approved their aggressive marketing strategy. Read some feedbacks:
The concept behind SocialMatic is simple. Just add a site to SocialMatic and it will be added to the following list of social bookmarking sites. For this, users need to disclose username and password for all the bookmarking sites to SocialMatic.
I did not find any reason why they asked for my address in the registration form. When I went back to home page after logging in, I got logged out! I submitted one site without filling up the long username/password form and nothing happened. They need to improve a lot on both technical and marketing aspects if they wish to stay here. I am just going to forget about them after finishing this post.