XXX Rewards has blog posts. They have a bunch archived and they email out the fresh blog posts every week. You can get posts for all of their sites as well as killer promo content.
They run the famous Karup's sites and have a couple of good gay sites as well if you need those.
EDIT.
now that I look at the site though it looks like they aren't accepting new affiliates until July. If you are an existing affiliate they can hook you up.