Now bitcoin's price on the top $1186, it is high price. If anyone invest on it, its mean we could earn from it. But how we could invest on it? In any investment sites?
Just buy and hold or if you know how to trade then you can try trading margins and I'm sure you'll earn more Bitcoins at the end of the day.
I don't suggest to try everyone trading because there are many incidents that many experts traders have lost a lot of money in trading. Particularly margin trading is very risky and even you can also lose your money quickly. Don't ever leverage more money while trading and should always go with slow until you understand how things works then slowly you can increase your trading amount.