Playing around with one of these free bitcoin things

This site seems to be the most popular free bitcoin site among the people on forums who know about such things. It doesn't yield a whole lot, because it's not using your computer's CPU power to mine bitcoin; you have to click on it to get a small amount of bitcoin and can click up to one time per hour. I'm just more interested in playing around with bitcoin and seeing if it skyrockets again, but I'm not a gambling type and don't want to risk my actual money in a risky venture. This doesn't cost anything to start though. It's like any of the low-payout clicky sites, and will probably net you a few bucks a week. Good way to get started with bitcoin though if you're interested.