Gearbox Software via Facebook offers SHiFT Codes that unlock Golden Keys for use on the PlayStation 3, Xbox 360, PC, or Mac versions of Borderlands 2 for free. That's the best such deal we've seen since five days ago, when a different set of codes yielded three Golden Keys (since expired). The codes:

• PlayStation 3: KBW3B-ZRB9K-SSWCT-S35TB-FHSKW
• Xbox 360: 535BJ-BK3KT-HXSBF-KXB33-3S6TJ
• Windows / Mac: CT53T-RCSWX-CJHTB-B33B3-K63KC