Here is fun search for you.

go to "http://www.altavista.com" (the search engine place) and in the query-box type in links:http://www.mudcat.org

You will receive a detailed list of ALL sites that have links to the MudCat......from "pennywhistles" to the "Smithsonian"

When you find a good site, use the "reverse links" to locate folk of kindred spirits.