Jump 'n Bump related sites:

Brainchild Design (creators of the original DOS game)
JumpBump.mine.nu (Different Platforms and Levels)
icculus.org/jumpnbump (New Windows Versions)
Jump 'n Bump Unofficial Version 1.52 (All in One Setup by Anti Light)

My Stuff:

LostCharacters.net (it's about missing stuff, just check it out! ;)
unprofessionalstudio.deviantart.com (My Deviant Art Gallery)