Dofollow Social Bookmarking Site

Hi
Linkmarking is social bookmarking site based on pligg. You can submit ur blog, forum here and get free back link .It is dofollow and totally free .....
Please review it

The concept seems interesting. Design is good. Colours are good. Has a professional and organized look.
May seem complex to the common people, with lots of options. So I would say it would be good a more clear hierarchy valuing the key elements fot better orientation of the new visitor.