Edmund Scientifics, home of all sorts of neat stuff for doing experiments and learning about science, is giving away a shopping spree. The amount of the spree depends on the number of fans they get (on Facebook, Google+, and Twitter) — the more fans, the bigger the spree. You get one entry just for following, and additional entries for sharing their contest announcements. The prize will be from $100 to $500, and the contest ends December 10.
Head to the contest website for full details.