Review my web app, CraigUpdate.com
brighton36: This site will likely either get down down for TOS violations - or its spidering IP will get blocked by craigslist.If anyone on hackernews wants a (more powerful) ruby program/lib to do this exact thing  (with multi-city amd regex search support!), I recommend you check out craigwatch/libcraigscrape : http://www.derosetechnologies.com/community/libcraigscrape