So many resources where to begin.
A couple of the best "resources" to help would be to download
Microsoft's Compiled WSH Help file. This includes jscript, vbscript, wmi, etc. definitely a valuable resource. Don't have a link but the file name is script56.chm (2.8mb)
Hey Scripting Guy has abundant amount of examples & probably will lead you to the above resource http://www.microsoft.com/technet/scriptcenter/resources/qanda/hsgarch.mspx
Probably my most favorite is Guy's Weekly Ezines. http://www.computerperformance.co.uk/ezine/ezine_back_issues.htm