- buy BTC (NOT FREE)
- earn BTC by doing some work (there were a couple captcha entry jobs that payed $8 for 10.000 captchas if i remember correct)
- earn BTC by monetizing your skills (pretty hard, unless you have really unique skills)
- earn BTC by playing games (for example: flappy birds pays 600-ish satoshi's for every game you win, 200 times a day)
- use faucets: don't expect to make more than $0.5/hour
- join a signature campaign on this forum