When I started blogging I wanted to have a blog on weblogs.asp.net but the admin replied to me that they didn't have any "free slots". At that time I was a little bit upset about that but now I know that his decision was right. Basically in most cases before you are able to provide interesting content you need to familiarize yourself with all the stuff that's already out there. Reinventing the wheel is not interesting and learning (climbing predecessors' shoulders) is not easy.
Current status: Climbing :).