Becoming a Citizen of the Web

It looks as though, due to classes, my geek factor has been suffering of late. I didn't even know what digg or del.icio.us were for until today. Took a look, and man, no wonder they're being used so much. Between these two pages, flickr, skype, slashdot, and facebook, you've got all you ever need for news and to stay connected. Truly, one seems unable to be a "citizen" of the web without having at least a blog and an account on all of these (or similar alternate) services.