Two similar, rectangular, unofficial logos for the Free Software Foundation. FSF is written in red, block-style lettering, with a string of 0's and 1's in the background.
Shawn prefers the one with the black background, so this is the one we chose for the original FSF page (which became the FSF website).
This image is available under the Creative Commons Zero 1.0 Universal Public Domain Dedication.
If you want to use this logo to link to a website operated by the FSF, feel free. If you wish to use it for any other purpose, please contact <campaigns@fsf.org>.