The Polymath wiki needs a logo.
Add links below to candidate images - it should be in a standard image file type, and available under a suitable copyright license.
If you have comments on the images, please add them to Talk:Logo.
SVG format, Public domain
I made some new proposals for the polymath logo. I tried to create something simple, symbolic, that looks nice at small and large scale and in color or black and white. You can see some variations on the same "theme" (as well as the sources) here: https://github.com/mseri/polymath-logos#variation-on-a-theme -- mseri 5 June 2013
PNG format, Public domain
A more simplistic poly math logo.
A play on polygons (3D shapes), multiple layers of data (wiki) and a solid base such as Math, I came up with this preliminary logo idea.
How about something simple like this. The sigma symbolizes the effort being a sum of many people's contributions.
Another take on the sigma, this time summing all math across the globe.
Here's something a bit more compact: http://f.cl.ly/items/1F2n1l0G333R2g1r0w12/polymath7.png Or even: http://f.cl.ly/items/2i2P3j3v371i0P053b2A/polymath6.png / / http://f.cl.ly/items/1f1s021E0k2U1A0H1d1F/polymath8.png
Some variations & visual explorations I did with some of your previous ideas. http://i.imgur.com/3ca4mSN.png enjoy.
JPEG format, Public domain
One with Da Vinci drawing in the background: Vitruve man,
A very simplistic, yet still awesome logo.