I have probably spent a few hours setting up a link wheel with multiple Web 2.0 Properties linking to one another. It wasn't a simple wheel with a --> b --> c --> d --> e --> f and so on. It was complicated.
Anyways, I was creating each blog manually, adding articles to each and then publishing and linking each article to a different web 2.0 property and occasionally linking to my money site.
Unfortunately, after about 24hrs, Wordpress.com had shut down all the Wordpress Blogs I had creating, deeming my link wheel now completely useless.
So just watch yourself... Always have a back up in place (which I didn't in this case)