Recently, Dumb Little Man posted 21 Excellent Web Apps for College Students. The list included some obvious choices such as Wikipedia, Gmail, Zoho, Google Docs, and Google Calendar. It also included other suggestions such as Remember the Milk, Bookfinder, Drop.io, and Flowchart.com.

You should review the entire list. Although written for college students, there is almost certainly something on the list the you can find useful. For example, although I have no need to Rate My Professor, I was able to use the website to track down a college professor that I had lost track of and, over the last several years, had been casually searching for. The instacalc is also quite useful, especially for the math challenged attorneys that I often run into.