Yes it's possible!! Some signature campaigns pay about 0.09/month around with the avatar bonus which is more than 1 BTC a year. I'm talking about betcoin campaign.
Am also looking forward on how I will be able to earn 1BTC in a year. But somehow suggestions here are very nice that we can actually do this as possible.
Go for gambling and you can make it in a single day
just kidding if you are not in hurry to earn 1 btc per year then I would suggest you to start with signature campaign.