by Jake Blues February 4th 2010, 6:10 am
Ive wondered about this too I think the only ways are:
Goto Admin Panel > General > Under Newsletter > Write and Send
But that sends a message to there email, it isnt a forum PM.
Goto Admin Panel > Users & Groups > Group Administration
Create a new group and add everyone to it, then u can just PM everyone from your regular message screen. Or u could add everyone as your friend and do the same thing.Messages and Emails
Goto Admin Panel > General > Under Messages and Emails > Announcements
Thats a good way to get a message out there too