Crazedlist.org lets you search across multiple Craigslist city pages at the same time.
Just type in your query, select the category, and check off the cities you want. You can even select large geographical swathes, like Northeast or West Coast.
The results page brings up windows for each city result with their own scrollable windows. If you don’t like what you see in one city, you can easily X them out without refreshing the page.
The site even lets you create RSS feeds for specific searches
For other neat Craig-hacks, check out Lifehacker’s post, “Craigslist for power users.”
Crazedlist: a great resource for expanding your Craigslist search powers. — BEN POPKEN