8 Great Paid Search Engines Beyond Google, Yahoo, Ask.com and MSN

We have all heard of, and commonly utilize, Yahoo Search Marketing, Google AdWords, Ask.com Sponsored Listings, and MSN adCenter and most search marketers are generally happy with their proven results. Although these powerful search marketing solutions are robust and drive millions of searches and clicks per day, there are many other paid search engines that [...]
From: www.searchenginejournal.com