I remember the old talk about churning out articles and tagging the CPA URL at the bottom. I also saw the front page and saw a comment, about sending different articles to different sites for different readers. My advice... don't. One thing about writing on the Net seems to be a bit of name recall. People won't click on every article on every site, and I think it takes 3-5 articles just to get people to notice yours is a familiar name. I'd recommend picking a place and sticking with it.