The first place I go online is my email. If I get anything that I need to follow a link for in that email, I follow the link and do whatever the purpose of it was. If not, I go to any forums and social websites that I belong to, to check for new posts. If I don't do that, I go and read my the blogs of my friends. I also spend time on Instant Messenger services.
Overall, there's a lot of variety in what I do for the second thing online.