we've found a niche that works very well for us, using adwords/msn/yahoo traffic. we're thinking it should be easy pickings to create another site in the niche, and bid on the same keywords to own a 2nd (or even 3rd) spot in adwords. We'd probably create a new account, run a subset of keywords and host the site on a different ip. Has anyone had any issues with G slapping for doing this?