Quantum computing for the determined

Looks like a good introduction so far. Very clear examples. I have studied quantum computing a little and I need to refresh .

His (standard) textbook on quantum computation is also very well written <a href="http://books.google.com/books?id=66TgFp2YqrAC&#38;dq=Nielsen+Chuang" rel="nofollow">http://books.google.com/books?id=66TgFp2YqrAC&#38;dq=Nielsen...</a>