There are a number of ways to make money online with or without a website.
I doubled my bitcoin(10
BTC into 20
BTC) in the last 90 days by investing to some online investment programs and some p2p loans.
No risks, no gain; More risks, more gains. Forgive me, I won't expose and recommend the project which I doubled my bitcoin, as I know that it is very risky to invest in this kind of investment projects and need to do lots of research before investing my money. This way maybe fit for me to make bitcoin, but not for everyone.
What way do you do it?

I aware that some people can earn from investment programs and p2p loans. You made your 10 btc doubled in last three months, but most likely you will have all these 20 btc scammed,,,,,like someone says, we are human beings, we are somehow greedy.