JP Mangalindan is a staff writer at Fortune.
Amazon Web Services serves more than 1 million companies, but growing competition is starting to stifle growth.
Can this payments service catch on beyond its super-connected niche?
Osama Bedier is trying to shake up how people pay in stores with a new souped-up rival to the credit card readers sitting next to most cash registers.
Big spending and lower-than-expected forecast for the holiday season put a cloud over the e-commerce giant's shares.
Braintree founder Bryan Johnson has created a fund for start-ups focused on a sci-fi future.