The Internet is an endless source of information and entertainment. While that's usually a positive thing, it can put a bit of a damper on your productivity. How many times have you gone in search of something, only to get sidetracked by something entirely different along the way?
The Read It Later app (there's a free and paid version) allow you to bookmark those diverting tangents, thereby saving them for a later time and keeping you on the task at hand. This app is particularly handy since the links are available offline once you save them -- all of which means that you'll make better use of your iPad time, both online and off.