trouble-shooting

I've discovered an odd issue with my site ( dudenhofer.com ). I've noticed that my sidebar links aren't working. When I check the code, it still generates the "a href" tags, however, none of the links are active. The mouse doesn't even change to a hand like what is common for links when you roll over them. Granted, this is pretty much a testing site for trying new things, but any ideas where I could have removed the link functionality?