Date	Description
April 2	SimpleDB Overview
April 9	Indexing
April 16	Indexing and Operator Algorithms
April 23	Query optimization
April 30	Transactions: Concurrency Control
May 7	Transactions: Recovery
May 14	Transaction Recovery with Aries
May 21	Distributed processing and Replication
May 28	Parallel processing and Optimizations in SimpleDB
June 4	Canceled