A few product mentions that we've come across...

WindowsNetworking

Product Review of PA Server Monitor: 5/5 stars!

TechRepublic

Considerations for choosing a network monitoring solution

Windows Server Monitoring Tools

A Server Monitor with Style

Microsoft TechNet

Toolbox - New Products for IT Pros

NetworkWorld

PA Server Monitor Pro: Straightforward server monitoring, with incredible power!

All Tech Radio Show

April 19, 2009 (start listening at about 3 min 20 sec)

New York State Defenders Association

PA Server Monitor being used by New York State Defenders Association

3D2F

Server Control Tower