I think the easiest and fastest method to obtain a very large bitcoin is with gambling.
because with gambling you can get tens of BTC in the short term

For me the best way to source out bitcoins is number 2 to number 3. The biggest provider for me is gambling. The commission I got from gambling is already half btc. I would like to add referral commissions and advertisement to your list. Advertisement and Referral commission is the best source of bitcoin for me. But it is different with different people so whenever we are given an opportunity to earn more we just grab it.

I recommend faucets too.  It will not generate much income but it help make the ball rolling, so to speak.   If you have enough, you can try mining.  Just be careful when selecting one because there are lots of scam sites floating around the web.  If your good at trading, buy low and sell high.  Just make sure to trade with legit sites.

you can try faucets but you will earn a very little amount, trading and gambling is not good now as if little amount loses it will mean more when price rises.

What is the best way for a newbie to earn Bitcoins?   

yes i am also agree with you. i also think that the most trusted and easiest and free way of earning bitcoin is only the signature campaign. from a signature campaign we can earn money so easily with out any doubt of losing our own money.

agree business is best way to get stable monthly or weekly good money) but siganture campaign
is good to get some btc and trade is good too

Lol it could just be your nightmare and you would regret it if you would try to make a profit from gambling and yes it is just the worst way to earn bitcoin there is more chance to lose than the chance for you to win maybe after you lose your money you would go home while you are crying and regret because you have met some games in gambling .

i would agree with Sled,i have made 1,3 bitcoin from 0,005 bitcoin in primedice.
What's the matter i did,if i lost it all later?
And deposited even more.Now im at -0,6 on all account's from gambling.
There are no enormous way to earn btc,the best one's is trading and investing in trustworthy btc casinos.

to be frank that enormous and best way to earn bitcoin is trading sir, with small of fund and lot of luck. you can turn the table and make your own way to be rich. even with 0.001 can be 0.01 in no time with good sense of trading and know the altcoin as well. i dont really trust on the invest site, because they can be scam sometime near the future, and you can lost all of your BTC sir