This pages is a collection of useful links. It’s not exactly a blogroll because it does not contain just blogs, and it’s not really a place to display reciprocal links, simply because most of the links are not reciprocal at all.
You can’t really ask or pay to be on this page, what you can do is make your site interesting enough that I’ll feel obliged to list it here. I don’t really visit any of these web sites often, I normally read their feeds regularly in Google Reader, so they are categorized according to the Google Reader folders I use.