Guide to Easy Search Engine Optimization
Dan Theis of Frisco, Texas is widely know as the leading expert when it comes to keyword research and search engine optimization. Way back in 2001 he released an e-book named SEO Fast Start and sold copies for around $25.00 each. His new 2007 version is 100 pages long, free, and aimed mostly at beginners, and did I mention it was free? It also covers a bit more, and as his community develops he will continue to give away more content in more formats.