In my own internet marketing efforts, one problem I've continuously run into is the fact that I trade links, or perhaps purchase some links, and then never can monitor whether that link stays live. I've used some major link sources in the past and was dismayed to find out I'd been paying for months for links that had been removed long before (without notice, mind you). At any rate, I'd be curious to get the members' feedback re: a tool I built to monitor those links. It's free, but it does require that you provide a link for continued use. It's still in the pre-launch phase, so I'd love to hear any feedback you guys have. You can sign up at BacklinkReporter.com. Thanks for checking it out.