you can earn $100 only 1 month just join signature campaign or try to find some mini jobs in service section like solving captchas if you have a skill like web designing or programming possible you can earn 1 btc in 2-3 months.
With certain knowledge in the network it will be possible to earn money in many large volumes. And you can earn $ 100 for these months and earn money on signatures.
There is still a lot of work we can do. Signature campaign is a capital to collect bitcoin for free.
After that we look for more profitable types of work. Trading is one option that we can choose.