Well, you add in links at Dashboard -> Blog Roll -> All links. Do note that those links have to be within a category and that category has to contain at least a single post for those links to display. Work around for that is to make a post with “Hey, I added some links. Please feel free to check them out” and tag the post with the categories of the links involved.
Either that or we’re still seeing a cached version of your sidebar althoough I only see the two WP sites currently on your sidebar.