Read
a Rolling Stone article about the sheer volume of actual fucking fraud that is involved in many of the current US banks foreclosing on homes. Not homeowners committing fraud, the banks, and it goes all the way down (of course it's related to the pit of lies and bullshit that was the subprime mortgage market, it's just horrifying to realise quite how much lying was going on).
And in an effort to try to do something with the money that I have that isn't "spend it on stuff I don't need" and that is "help the world be better", I've signed up on
Kiva, a microfinance site, and have made a loan (just one so far, but I intend to do this regularly). Check the site out if this interests you.