I don't know what your criteria is for which projects to list, but I found this little tool yesterday, generates citation markup for Wikipedia articles.
Citer is especially useful for generating citations from Google Books URLs, DOIs (Any Digital object Identifiers) and ISBNs (International Standard Book Numbers). Additionally, URLs of many major news websites are supported, including:
I'll add it to the site if you think it would be a good.. addition. :)