No offense OP, but I have trouble understanding how are you willing to invest in bitcoin mining apparently without even knowing about online exchanges, dwolla etc.
Reminds me of when my wife tried to explain to her coworkers how we are taking additional income from online poker.
She passionately talked about how it's not really gambling but a game of skill and a duel of minds, where you need to exploit your opponents weaknesses to be rewarded, how we're playing several hours a day and having made so-and-so much money...
And after all that, her coworker said: "yeah, it all sounds neat and all, just too bad you can't take the virtual money that you won from inside the computer and actually buy something with it"...
The point of my thread was to find out if there is truly a possibility to earn something, and this way decide if I should invest more time and money in Bitcoins. And I found out and I am grateful to all who answered.
What you mention are details that I must cover once I actually have some bitcoins and want to sell them, or when I will buy bitcoins, and this way I will find out for myself how everything related to bitcoins works. But I am new, all these details with the exchange were mysterious and caused a certain uncertainty for me, and I felt the need to make sure that its real and you can actually win, not from sites that say that you can anonymously, but from actual people that do actual trade with BTC. That's why I thought this was the best place to ask, and I was right.
This is a very new idea, and sounds amazing, but its also quite hard to believe that it really works. Therefore, like I said, I felt the need to make sure.