The best upgrade you can give your deskop PC, iMac or laptop is a solid state drive aka ssd. This site features a review of the best solid state laptop drive and also explains why solid state drives are so good. Lots of ssd deals featured as well as FAQ.
Memes for the creation of a new culture is the name of my new book which is being written online. I spent a long time (5 months plus) figuring out a way to publish a book online within the constraints of my blogging system. I put up about 2 chapters worth of content at the end of last year and have been filling in gaps ever since.