Take a look at the various styles and price ranges for coffee tables here. It will help give you an idea of what styles and terminology used in the descriptions of the craigslist ads and help evaluate the value.
Coffee table styles and price ranges
FYI, I got the natural finished Mission style coffee table for my apartment a few years ago. I sanded it down and gave it a darker stain to match my stained oak furniture. I was impressed by the quality of wood and the sturdy design of the piece for such a low price.