Well, this is probably more like rambling, than any specific ideas, but:

The comics keep me coming back every day.

I don’t really have much incentive to post reviews. I do it when I think about it, but, often, I just don’t think about it. If I do think about it, I have to decide what platform to review, then what game, then write the review. If there were some way to randomly place un-reviewed games in some sidebar, with a super-fast "click here to review" link, that might cause me to think about a heretofore un-thought-about game.

I know you don’t make money on this site, but some sort of giveaway might be interesting for me. A lot of us readers like the old or "classic" game systems, so if you gave away an old 2600 Space Invaders cartridge, something like that might be an incentive for me to post reviews.

As for keeping folks returning, maybe some kind of forum, or topic of the week, or something. You’ve got the discussion boards, but something every week (or whatever time period) where there is a particular topic to discuss. And, choose topics that haven’t been done to death. Forums like, "What’s the best Intellivision game?" or "What’s the best strategy game?" or "I just got a Game Cube; what games must I get to see the system at its full potential?" Maybe that’s what Ask Bitsmack is, or maybe not quite…

Again, this is just rambling, but maybe it helps…..