I do not use any exchanges since mtgox went down. I use localbitcoins or transactions here on the forum.
So you have to read this about Coinbase:
TIME - http://business.time.com/2013/12/04/business/slide/top-10-exciting-startups/
The New York Times - http://dealbook.nytimes.com/2014/09/10/coinbase-extends-bitcoin-access-to-international-customers/?_r=0
The Wall Street Journal - http://www.wsj.com/articles/SB10001424052702303491404579390971115008010
Bloomberg - http://www.bloomberg.com/news/articles/2014-09-30/coinbase-leads-move-to-bring-bitcoin-to-masses
It may change your mind
