There are a few ways to earn bitcoins.
1)Autosurf for it. Simply surf websites and you will earn bitcoins.
2)Mine for it.
3) Take part in bitcoins faucets!
Free bitcoins autosurf sites!
Free bitcoins mining sites!
Free bitcoins Faucets!
At some points in your life, you might want to create a website to promote your own affiliate links for the above websites. To do so, you need traffic for your websites. Below are some websites where you can promote your websites for traffic.