http://bitcoin-market.org/A marketplace for bitcoin, etc. (Currently doing some development to make it better, but it's basically complete for the most part).
Congratulations on your new site on many things related to Bitcoin. Since you also have a forum, it can be nice if you can have a paid-to-post program just to jump-start the discussions on many attractive topics. I am sure many members of Bitcointalk can be able to help your site gain more traffic and generate more interesting content. Hope you can make it a very profitable site soon. Will visit your site from time to time. Also you can use push notification plug-in which can help a lot for traffic.
Nah, paid-to-post systems should be run by specific companies, not by forums. Bitcointalk's paid-to-post programs work better than other Bitcoin forums because it's just the free market that caused them as an addition to posting on the forum (and because the stricter moderation that's started coming from SMAS etc is helping to reduce sig spam, so the system has matured more).
Adding that on a new forum will just result in low pay which people won't care about because no one will have seniority and everyone will be participating just for the sake of payment without clicking on ads. That'll make the forum's content constantly at a bare minimum and potentially worthless.