A software update for Amazon's $40 or £35 streaming dongle also brings "captive portal" Wi-Fi access, while the Fire TV box gets expandable USB storage and Bluetooth headphone support.
The new "Login with Amazon" service will allow users to sign into Web sites, apps, and games with their Amazon accounts.
In its annual post-Christmas debrief, the company also touts the coming expansion of its one-hour delivery service, mobile shopping and Fire TV.
Sightings of a mysterious Amazon truck driving around Seattle start popping up on Twitter.
Need help getting started on all-you-can-stream services like Spotify and Apple Music? Here are the six questions to ponder before you sign up.
In a deal that's sure to sting Netflix, Amazon licenses HBO programs for its Prime Instant Video service exclusively -- but no "Game of Thrones" -- and says HBO Go app will be on its Fire TV media-streaming box later this year.
New video site Vessel wants consumers to pay $2.99 a month for early access to clips from online stars. The big question: Will consumers actually sign up?
A new law reverses prohibition against use of anything but US currency for commerce.
Users may see fewer indie artists on YouTube, as the record industry and Google spar over licensing agreements for a new paid service.
How much does Microsoft want you to sign up for Bing Rewards? About 100 gigabytes' worth.