I earned from Signature campaign and selling a service.
Sometimes, I made a little profit from gambling and giveaway.
I earned from the signature campaign and cloud mining.
Are you referring to your signature 'cloud mining company'? You realize that they are running Ponzi scheme right? Anyway, I earn bitcoins through trading, not much but small sums are good enough for me. The safest way to make money with trading is through arbitrage. You should check it out.