Looking for a good, comprehensive guide for PowerShell 3.0? Microsoft has released a 334 page document outlining the entire language specification for version 3.0. The doc goes over just about everything. There’s no sugar-coating here, the doc is straight and to the point. You can utilize this document to search and locate specific functions, methods, and native commands.
Download it: Windows PowerShell 3.0 Language Reference (538.5k)