If you have any useful material you want to add to this site, send it to me at jon@nerdgrounds.com. Use the word "SUBMISSION" in the subject line. I will not accept: + copyrighted material obviously not belonging to you + serials, cracks, warez, or where to find pirated material Submitted material will most likely be accepted if: + in HTML, text, DJVU, or PDF format or is source code + is written by you, you own the copyright or is public domain or is released under a Creative Commons license, GNU Free Documentation License, or similar license that permits royalty-free distribution. + has historical value or discusses constructive or playful things to do with hardware, software, file formats, etc. that programmers can learn from and/or enjoy.