Microsoft Press has released a free ebook: Introducing Microsoft SQL Server R2, by Ross Mistry and Stacia Misner. There are 10 chapters and 216 pages. Here is a quick overview of the chapters:
Chapter 1: SQL Server 2008 R2 Editions and Enhancements
Chapter 2: Multi-Server Administration
Chapter 3: Data-Tier Applications
Chapter 4: High Availability and Virtualization Enhancements
Chapter 5: Consolidation and Monitoring
Chapter 6: Scalable Data Warehousing
Chapter 7: Master Data Services
Chapter 8: Complex Event Processing with StreamInsight
Chapter 9: Reporting Services Enhancements
Chapter 10: Self-Service Analysis with PowerPivot
You can download the ebook in PDF format here.
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