Now this is a great solution (have not tried it yet) but i am one of those people who really really hate taking notes ,even though i know its extremely important and it have many times paid for not doing that . but thanks to Steve jobs and Iphone Apps. it became much more easier and interesting. through lifhacker i found this
All you have to do is open Dunno, jot down a quick note, then wait for a few moments. Each note will be automatically augmented with relevant images, web links, Wikipedia articles, videos, and more. It won’t attempt to outright answer a question like Wolfram Alpha or Siri, but it might save you a few moments of searching through various web services.
Your notes and links are automatically synced across the Mac, iPad, and iPhone applications, all of which are free from their respective app stores.