Jack Dorsey, co-founder of Twitter, and co-founder and CEO of Square, will have lunch with a winning bidder, in an auction handled by eBay,...

Twitter co-founder Jack Dorsey’s mobile payment startup Square has closed its Series D financing round. Investors participating in the round include Citi Ventures, Rizvi Traverse Management,...

Twitter co-founder Jack Dorsey's mobile payment startup Square is going to be processing credit and debit card transactions for Starbucks at participating Starbucks retail outlets throughout...