Very neat but little known

A Pay-Per-Click search engine (also called Pay-Per-Ranking engine) allows you to place your site at the top of their results almost immediately. This comes at a price, though. The idea is pretty simple. You put in a "bid" for how much you're willing to pay per click-through on certain keywords...

, requiring costly routing equipment which has previously been used only in mission critical applications of Fortune 500 companies. However, a very neat but little known Domain Name Server(DNS) feature called 'round robin' allows the selection and provision of a particular IP address from a ...