Do you ever notice that police car that is slightly hidden behind a building at a major intersection or the squad car that is sitting in the median on the freeway?  Chances are others have seen that speed trap as well, and maybe even documented it...

Speedtrap.org is a great website that prompts drivers to report speed traps they come across.  The website is broken down by city and state.  It is very easy to navigate and has dated posts, so you know how recent the speed trap is.

So next time you are going to a new city, check out the site and see if you can avoid a ticket.  Oh, and if you see a cop hiding somewhere with his radar gun out, make a post and help a fellow motorist out.