themerkle reported on Saturday that Coinbase will increase their 1 percent fee to 3.99% on August 5, 2016. This will effect all Countries currently using the service. It looks like they might have also rapidly increased the price for buying/selling BTC with your US Bank account and your USD wallet.
Not sure why they did this, but I think this will really bring Coinbase down, Guess circle and localbitcoins will take some BTC profit soon. Coinbase is going to lose customers.