Craigslist has become one of the more popular classified ad/personal ad websites out there. It started small in San Francisco, and has since mushroomed to include almost every major city in the us. It has developed its own culture over time, and as you can imagine there are plenty of quirky posts. Craig himself scans through posts and picks out the Best of Craigslist. They are often funny ads or rants and usually use adult language or even contain adult content. There are some pretty funny reads in there, and if you are looking to kill some time at work (who isn't?) I suggest you give it a try.
(Gautam pointed this out to me a very long time ago (months) but I've been lazy about posting to the blog. Also I haven't had much content to post, or much content that I felt was worthy of your attention. I guess I'll have to either lower my standards or not post much.)