My sites are not created through WordPress, so I can't participate in BlogSlammer Co-Op. I was wondering if there was interest amongst those of us who have our own blog farms to trade content. I don't have anything concrete in mind, but I thought I could begin the discussion. In my case, I use BlogSolution - I have 200 total; 40 that are active and indexed. Having relatively unique content on each others sites could help our own sites differentiate. And then of course, leveraging other blog farms to link to your $$ sites will help with backlinks. A rudimentary way of doing this would be to create a private site where people could post unique content modules; then others in the collective could use that content on their site provided they included the backlink. Let me know what you think; or if you have any ideas of your own along these lines.