Books by Dr. Howard Bandy
Dr. Bandy has written a number of great books on both AmiBroker and back testing
AmiBroker Official Site
Purchase AmiBroker and related tools, search the knowledge base, browse the code library
AmiBroker Community Forum
A great place to ask questions, get help on AmiBroker and AFL, and download free code
Recorded AmiBroker instruction from myself and other instructors
Other Interesting Sites
List of places to find quantitative trading ideas
Market timing and other interesting indicators
A competitor to Yahoo Finance, but what makes them really interesting is their CML TradeMachine, a useful tool for options traders.
Blog posts and articles on a range of topics related to quantified trading
Heat maps, screeners, and other fun tools
Reviews of investment newsletters, teaser ads, etc.