Lifehacker carried an post on how to do a global search on Craiglist. Download Squad id it too and here is that article:
Many people may not have noticed this, but it's impossible to do a global search at Craigslist.org. It sort of makes sense, doesn't it? For most of the public, we'd imagine a global search would turn up useless results, but that only makes Craigslist useful for most of us. What about thoe crazy-curious folks that just need to know all about what's being offered, asked for, etc. around the world?
Marty Orgel submitted to Wired a short-tutorial on how-to do a global search of Craigslist through Google, and it's pretty easy. Just do an advanced search, and in the "Find web pages that have... all of these words" box, type in your search terms. Make sure "directory" is entered into the "But don't show pages that have... any of these unwanted words" box, and type "craigslist.org" into the domain box at the bottom.
The method worked for our global search of "time machine", which turned up 12,700 results from several regions including: New York, Austin, Northern Virginia, and San Diego. Most of them really had to do with a time traveling machine, so, yes, there are several crazy people in the world. Don't worry, though, we're pretty sure many of the listings originated from well-humored teenagers... well, we hope that's the case.