I always pick a "halfway" point to meet. The mall is usually a good spot.
Just a quick story about this, sorry to hijack the thread for a moment.
I contacted a guy about buying some old Cigar Boxes (I was going to use them to store tabletop game pieces, can you tell where the geek came from in my name?) that I found on Craigslist and offered to meet the guy at the Mall, since I figured it'd be a nice public setting.
He let me know that he actually works there and would be happy to meet him there after work (9pm). Just give him a call when I got there.
I got there at 9 on the dot and gave him a call, he said he was around back on the bottom floor of the parking garage. I figured that was kinda weird because there is plenty of parking in the front usually and people hardly use the back lot, but I figured maybe employees had to use that one to save room for customers.
I drove around and called him again since I couldn't see him, he said to keep going and around the corner there is a bunch of dumpsters, he'd meet me there. I have no idea why I went, but I drove around thinking that I could just keep driving if he looked threating.
The guy ended up jumping out from behind the dumpsters and motioned me to come closer. He looked pretty old and figured I could take him if needed so I jumped out and ran over. He ended up leading me into this weird back door and we walked down this long dark hallway deep into the mall.
He apparently worked security and took me into this cool room full of monitors where we could see the whole mall. I used to work security in college so it was kinda interesting to me.
Anyway, nothing sketchy happened and overall it was a pretty cool experience but I remember telling SWMBO later and she got super annoyed that I would keep going along with his crazy directions.
So that's my Craigslist story, but as you see above, I still use the site and actually went to the guys house yesterday.
It probably helps that I'm still relatively young and can afford to be dumb.