Want to start a wiki, form or a blog? This matrix allows you to compare features for a variety of services: http://www.weblogmatrix.org/ (For blogs, I vote for TypePad!)
Wondering about what happens when you reveal aspects of your self online? See the Future of Reputation...then think before you post! http://docs.law.gwu.edu/facweb/dsolove/Future-of-Reputation/text.htm
