You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$1 Answer
Twitter is an online community where you and your friends can connect through tweeting (updating what is going on in your life) or sending each other direct messages as well. So basically you use it for contacting friends and meeting new people.
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
I've voted NBA because there is not enough information provided in the answer, or links or sources.