Jumpstart Guide to SQL Server BI
BI (Business Intelligence) is a catchy field these days and SQL Server provides ample support to build BI applications very easily. However, for many, the field of BI is quite new and there are a lot of terms to reconcile with like: data mart, data warehouse, data mining, cube's etc. If you want a quick introduction to these terms and what they mean and how to design for them, then look at this free eBook: A Jump Start to SQL Server BI. This book provides a good introduction to BI concepts and expands on it to explain how SQL Server 2005 has matured for BI applications.
A good read for a weekend! The book is around 140 pages and contains samples too. Enjoy.