If you haven’t come across Google Trends yet, check it out. You can see and compare search patterns over time and key news articles are correlated with the graphs. Interesting to note summer 2005 saw a big peak in search volume for the t-shirt printing industry compared to 2006, which wasn’t as big as 2005 on the world’s biggest search engine. Anyone know why last summer was so popular? More concerts, elections or campaigns than 2006? Answers on a postcard to the usual address ;o)