Some other LINQ related links from MSDN
The LINQ PROJECT Getting Started (LINQ to SQL) Provides a condensed overview of LINQ to SQL along with information about how to get started using LINQ to SQL.
Programming Guide (LINQ to SQL) Provides steps for mapping, querying, updating, debugging, and similar tasks.
Reference (LINQ to SQL) Provides reference information about several aspects of LINQ to SQL. Topics include SQL-CLR Type Mapping, Standard Query Operator Translation, and more.
Samples (LINQ to SQL) Provides links to Visual Basic and C# samples.
Standard Query Operators Overview
Provides an introduction to the standard query operators. It also provides links to topics that have more information about each type of query operation.
Expression Trees in LINQ Discusses the use of expression trees in LINQ.
Enabling a Data Source for LINQ Querying Provides an introduction to custom LINQ providers and other ways to extend LINQ.
NET Language Integrated Query
Getting Started with Standard Query Operators
Language Features Supporting the LINQ Project
More Standard Query Operators
Query Syntax
SQL Integration
XML Integration
Summary
Sidebar: Standard Query Operators in a Nutshell