This is the best website I've come across in awhile - filled with future thoughts about society and technology. Especially make sure to check the 'cool tools' section:

www.kk.org/index.php

This guy also works with the Long Now Foundation (www.longnow.org), which is a SF based non-profit that has taken the goal of producing a clock that will keep time for the next 10,000 years. Think about that for a second. Very bright folks.