Yes as we can see bitcoin is a big deal crypto-currency today. So many opportunities and businesses will be open on accepting bitcoin on transaction. It has fast easy and reliable transaction so definitely people will be attracted on the good side of bitcoin. Not just that its price or value is always dependent on the scale of people who used at its daily basis. So people together to its community will be open on supporting it to its price to pump. For me the best way to earn on bitcoin is by signature campaign where you will post to earn. It fast and reliable because you will work hard for you to earn. And there is a lot of more choices like trading and bitcoin transaction related small time businesses.
So many business that can be involve in bitcoin you just have to see for yourself what fits you the most, and base on that accepting bitcoin as a payment and yes because of the movable value of bitcoin people are mostly attracted to this and there are regular gamblers that are now using gambling sites that are accepting bitcoin because it is more convenient and reliably fast transaction that gamblers would like, and well signature campaign is a kind of my thing too but don't over do it and think of other things that can make your bitcoin goes up!
The topic here is what are other good methods to earn bitcoins, the OP says at the very first post that he had been trading bitcoins on btc-e and was earning a little plus the fees that are most likely sky high for him. So I only stated what I had to do to earn bitcoins. Mostly newbies go through faucets which I assume you did too in your time. Some also do mining and mostly through gambling which is what I did. These are just suggestions, and I'm no expert because I'm a newbie here at bitcointalk but those are the things I went through too.
Yes I am one of those newbies that starts with faucets when I am advancing my rank back then by posting in the forum, but I don't regret taking my time up with faucets because of the simple task and easy Satoshi's I am acquiring with it, well having fun with it in a little while until I stop it so I could prioritize earning with other bitcoin stuff that can pay more bitcoin than faucet.