For the architects in the house, you can create a sketch with Gliffy and then extrude it in Sketchup for a fly through. All for free. Times are a changing.
The default for gliffy appears as a network diagram, which I would still likely build in network notepad. But that doesn’t provide collaboration. One plus for network notepad is that most network administrators aren’t excited about the idea of posting a detailed diagram of their network on the web with any company. Architecture on the other hand, or flow charts of processes, seems like a good use of gliffy.
Via the Houstonist site.