backlinks / references?

On other wikis I know there is a way to find how many references there are to a page, and also a way to see a list of all the pages with links that lead to a page (i.e. backlinks). I googled for this for xwiki, and found a couple of posts, but didn't have any luck figuring it out. Does anyone know if there is a way to get xwiki to do this? I'm just getting a free site, I'm not running my own server. My wiki is: http://rpggumbo.xwiki.com Thanks in advance for any help! Art