I'm a member of the etsy cloth diaper street team, and we did a promotion a few months ago that happened to involved giving away free diapers...so I have a blog post in my archives titled FREE CLOTH DIAPERS starting today! And I tell ya what, I get so many hits on that thing
I actually had someone leave me a comment on it just today that they went to the site (the team blog) and hunted and couldn't find any free diapers. Um, well, it's a post from April...but I went back to the post and edited it to clarify anyway. But yeah, having certain keywords (like, apparently, FREE next to CLOTH DIAPER) will bring in traffic.