Things are looking fairly generic right now, it will need some sprucing up before public release!
well, "layer 5 and below" (5session, 4transport, 3network, 2datalink, 1physical) are all definitely fair game for NE. How about...
A stack of blocks showing the seven layers. The top two (7application, 6presentation) would be gray, so to be visually downplayed. The lower 5 blocks are then colored and labeled.
I do love the logo Jeremy uses for his blog, and I also love the visio stencils he uses :
I think our logo should be in the same spirit.
We could borrow the etherkiller logo...
This is one of the coolest images I've seen for a network analogy. It's a pipe in digital splendor. Not sure if this can be reduced and be useable, but perhaps this will spark inspiration for the network engineers we have here who moonlight as graphic designers.
Disclaimer: I used this on my own personal blog (and now as my profile pic).
Layer 8 icon.
Network Engineering is the 8th layer!
Here's my first stab at an icon, not explicitly showing NE as L8, but close enough to get the idea. Forgive my lack of graphic designing skills. This could be scaled-up for the larger logo.
This represents L1-L4 (PH-DL-Net-Transport) with Network Engineering sitting on top above the not shown L5-L7.
This is an .ico file converted to png since SE doesn't allow ico image uploads.