Gambling isn't a violation of law, but it's not a good thing to opt for if you want to earn Bitcoin. The closest and easiest way you can earn something is right in front of you: this forum. Grow your account up and join signature campaigns - you'll be able to make even $25 a week after a few months only. It's the easiest, funniest and the greatest in my opinion.
Me thinks this is a good idea. This is really low risk and safe. Has anybody ever done full time signature campains and makes $100 or more per week? How long would it take to get to this?