I agree - I've been using craigwatch for a while - once you configure your report, I keep a cronjob running once a day to update me with all the new stuff in my area that I might be interested in. The results are way better then craigslist's or these other online systems. Once its setup, it just works automatically - Plus, I dont have to worry about all the spam coming in from a forked-over email address

For me, my needs were a little complex, so I didnt want to invest my time in a bunch of searches on a site that might go away in a week. With craigwatch its just a simple gem install, and you know its not going anywhere since you can run it on your own box. Its well written too - I made a couple improvements on the lib for my purposes and it was a painless process