Blamads is a solid company. I just got my first check from them for over a couple hundred bucks from just 5 days of using mobil submits with their content locker, completely whitehat. I became paranoid that that type of offer would upset my YT video viewers and they might start to complain to YT or flag my video, so I pulled it (I can't afford to lose that source of traffic). They also have regular email submits that are not content lockers.
Blam is the way to go. Leadbolt is good too, but Blam gives you a bit more flexibility in choosing offers and whatnot. They don't force you to use the content locker for every offer like Leadbolt does.