All those who still buy offline solution books, come on get on the technology wave. I have got so used to reading ebooks that I am glad that there are solutions available online. It is so much convenient to surf through it. The search feature added is a boon. I am a big fan of eLearning and I would recomment all of you to start using e-content and stop using books.
One suggestion for Stupidsid guys, you guys should make this available on Amazon, this is will boost your sales.

Superb User Interface and Awesome solutions.. no bugs so great.... If the GO TO tab on right could be replaced by some easy alternative then it would be great :-)