Resources Link-Development
Link development is essential to increasing your sites ranking with all the major search engines. As well as directories you can buy advertising on other sites, or exchange links, fortunately there are sites out there that make the process of finding links much easier.
LinkAdage provides link auctions, and a link brokerage service for those looking to buy links and advertising space. They also offer site appraisals for those looking to sell advertising space.
http://www.linkadage.com/
Specialize in placing static text link ads on high quality, high traffic web properties. Find publishers by category or popularity.
http://www.text-link-ads.com/
Buy advertising at a fixed price. Find publishers by category or popularity.
http://www.textlinkbrokers.com/