In case you missed it last week, be sure and check out my guest post on the Hey, Scripting Guy blog. There, I show you how to create sites, get sites, and delete sites from SharePoint Online using PowerShell and CSOM. SharePoint Online Management Shell doesn't have this functionality, but you can use CSOM instead. If you are using Office 365, this can be handy to meet your site provisioning needs.
Hey, Scripting Guy Blog Post
I also posted the complete PowerShell scripts to the TechNet script center.
I hope you find these scripts useful. Let me know if you have any questions.