Compare RESTful vs SOAP Web Services

There are currently two schools of thought in developing Web Services – one being the standards-based traditional approach [ SOAP ] and the other, simpler school of thought [ REST ].
This article quickly compares one with the other –

LINQ Query Expressions

Expression like the middlewae between C# and SQL, it translate LINQ Query to SQL Query.
IQueryable use Expression to translate it.
IEnumable doesnt use Expression b/c it query on memory