Buzzoodle has established one of these lenses at http://www.squidoo.com/buzzoodle and it has increased our traffic steadily.

It also has been the glue that has helped tie our different sites and resources together.  It has also been an additional page published in something akin to a directory.

Squidoo can help your search engine ranking, your website traffic and your reputation as an expert in your field if you take the time to put together a useful web and let some people know about it.