http://programminglinq.com/blogs/marcorusso/archive/2007/07/10/linq-to-sql-performance-optimizations.aspxRico Mariani did a very good job analyzing performance implications of LINQ to SQL queries. He is currently working on Beta 2 code that is still not generally available, however he points out a lot of useful information. The following are his posts availableenCommunityServer 2.1 SP2 (Build: 61129.2)