Link Round up--Interesting Stuff from the Web

Once again I am cleaning out my favorites file and have a bundle of links that are interesting but don't really fit anywhere. Here they are:

• Random Facts But All True http://www.thecryptmag.com/Online/29/RandomFacts.html
• A Video Game That Teaches AP Level Immunology http://games.slashdot.org/article.pl?sid=08/06/29/198238&from=rss
• The Price of Food 2007 vs 2008 http://www.cattlenetwork.com/Content.asp?ContentID=230814
• 10 Things to Do in Europe That Will Make You Smarter http://matadortrips.com/10-things-to-do-in-europe-that-will-make-you-smarter/
• 30+ Tools for Cheap and Convenient Air Travel http://mashable.com/2008/06/17/tools-for-cheap-air-travel/