Alot of people on here offer link purchases for somewhat high PR pages for very reasonable prices. With that said, is there an advantage to using a service like text-link-ads, adbrite, etc? Is there something they offer that sets them apart from people selling links here?
Personally I think DP is on the low-end of the market. Higher quality sites are more likely to get text-link-ads (from the site that goes by that name), or sell them directly.