RockMelt’s browser works differently from Internet Explorer, Firefox, and Safari. It is more than just an application on a PC or Mac. For one thing, it presumes users are on Facebook and offers a number of features to simplify the Facebook experience. Integrated with the app is an online service, or what is trendily known as a “cloud.” RockMelt also applies several techniques to update favorite sites faster and to give more thorough search results from Google. In many ways RockMelt acts like an iPad application—self-contained and self-updating, but on a PC. And like most good Internet breakthroughs these days, it’s free.