I've been reading the Powershell newsgroup, which is pretty much the authoritative source for community help.
http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.windows.powershell
For those who want to send email, Send-SmtpMail is part of the PowerShell Community Extensions. Download here:
http://www.codeplex.com/PowerShellCX/Release/ProjectReleases.aspx?ReleaseId=2688