There isn't a wrong answer here, the only wrong answer is whatever does not work.
the thing is, if its a great site your posting on, could be great to go to the money site, but if your just bombing away Id go web 2.0.
If it doubt go slow, as its always easier to add more links then to have too many.
Also testing is key, make a test site, if you don't already have one, and try it. If something brings good results on the test site, you can consider it for the money site. If it brings no results or bad results on the test site, obviously don't do it on the money site.