I strongly suggest Mark Worrall's Chelsea Chronicles collection. Mark has a stall on Fulham Road where he sells CFCUK and other items and is always glad to meet new supporters and tell a story. In addition, he writes for ESPN and is a published author himself, as well as one of our best fans.
This will give you an idea of what it's like to be a real supporter and bring you up to speed on the events of the last decade, and going back even farther with the other volumes.
http://www.amazon.com/CHELSEA-CHRONICLES-one-MARK-WORRALL-ebook/dp/B006Z90NW0