WQL in Powershell

For those who were at my Windows Management Instrumentation talk Saturday at Chicago Code Camp, you may recall one of the attendees mentioning an eBook on WQL in Powershell. I thought it would be worthwhile providing the link to Ravikanth's eBook, and thanks to Steve Murawski for the added information. Ravkanth also has a series on his blog on using WQL in Powershell, which if you found WMI to be useful based on my talk, is definitely worth a read.