I love to spend time reading Wikipedia articles. Whenever I hear something new, I either put it in Google search box, or Wikipedia search. Or sometimes I would just use the random Wiki article link to jump around.
If you are a avid Wikier like me, and would like to get a random Wiki article when you start your browser, here is a trick...
Point your browser startup page to http://en.wikipedia.org/wiki/Special:Random. Now whenever you start your browser window, a new Wiki article will be ready for you :)