Go there.
It's such a brilliant idea. A website where organizations can post volunteer opportunities and 'we the people' can peruse them, and decide where to help. Did I mention it was super easy!?! I actually did it from my phone... 5 clicks, 4 questions, and a submit button later, I'm signed up with a confirmation e-mail and all. I'll be spending a couple hours next Saturday morning reading with 3rd-5th graders and doing fun crafts! Really seriously, check out Chicago Cares... and have a good Thursday!
P.S. There are still a few spaces open if you want to come with me! It's Saturday April 9th from 9:30-12. Just leave me a comment if you want details...