This one got the text in a darker shade of gray when it made me some sales:
http://www.qualitypornfree.com/tgp/babes.htm
small text, talking to the user like it is an "article" recommending the product like a "tip/advice" not really "selling" it.
This is another approach more like an ad:
http://www.qualitypornfree.com/tgp/god/index.html
hey, noone else wants to share their experience with ieraser? don't be greedy!

and ask the user to "download" internet eraser, not "buy"
