I just stumbled upon an amazing blog called black belt productivity. Simple amazing. This is all about being productive, and getting your system together. The two authors (Jason and Micheal) do a very impressive job of both giving a lot of info, and yet havng a very nice and clean design to their website.
Besides a lot of things, something work checking out is their very thorough primer of the Getting Things Done (GTD) book by David Allen.
Please do go and visit the site and get impressed yourself.