Official Rube Goldberg Web Site
rgmc.com
Information about Rube Goldberg, his drawings, his machines, and contests.
Marble Machines
sentex.net
Amusing to watch artistic contraptions.
Rube Goldberg Machine
jacobshwirtz.com
This Rube Goldberg Machine by Jacob Shwirtz turns on a blue-light thereby revealing a hidden message in 47 steps.
Argonne Rube Goldberg Home Page
anl.gov
Contests for high schools.
Union College Contest
engineering.union.edu
Rube Goldberg contest at Union College with pictures of past machines.
Purdue University Contest
news.uns.purdue.edu
Rube Goldberg contest whose winner competes at the national contest.
National Rube Goldberg Machine Contest
rubemachine.com
Home of the Theta Tau Fraternity Rube Goldberg Machine Contest. This is the official site of the national collegiate contest.