I have to agree with Catalogablog that the name is not so good - the name conjures up associations with umbilical cords for me. And I never thought I'd be writing about them here.
According to the site, it should be pronounced WOM-blink, rather than womb-link. Word-of-mouth-blog-link.
The concept sounds interesting. So let's try it out...
WOMBLINK provided by RSS4Lib
This link should give the user a snippet of html to include in their blog post about this page. It is being promoted as something for libraries to include on their websites, press-releases other html-enabled resources to encourage users to spread the good word about the library, its services and events.