Hello,
Earning Bitcoins by Mining with our own Hardware. But we have to Invest more Hardware and Hash power. We can earn very little compare to our Hardware Investment. And other way is cloud Mining. Some Datacenters offer their Hardware for Rent. We can purchase and Host virtually and Mine the Btc virtually.
Another way to earn Bitcoin with little effort is Referral scheme. You can earn upto 16 BTC in 1 month with very low fee of 0.0075 BTC. All you have to do is upgrade your account with 0..75 BTC and Refer few peoples. That's it. This is member to member payment system. You will get directly paid to your wallet. check www.xupbtc.com/home/ecash
regards,
Manoj