Late nights and a busy May

I just investigated the "Web History" feature in Google and discovered a great way to rediscover lost links -- as well as a strange sort of diary left by my tracks in cyberspace. The chart here is from clicking on "trends" and it shows the "all time" results of when I searched -- other options are available, like the past seven days, 30 days, etc. These are Google searches only (those I did on other computers or through other engines are not included) and I'm assuming these have only been tracked since I gained a google e-mail address, which I rarely use but which tracks me all the same. May shows a lot of activity because I was working on a book then and in early June. Interesting stuff.