Take Amazon's Alexa for a spin in your browser
No Echo necessary.
Google Home will take on Echo to be your at-home assistant
Game on, Alexa.
Amazon gives Alexa more control of your Fire TV
The virtual assistant can launch apps, play videos and more.
Cortana will soon make suggestions throughout your day
Windows 10's virtual assistant is getting smarter.
Privacy concerns kept Nest from making an Echo-like assistant (updated)
Now Nest thermostats work with Amazon's smart speakers instead.
Hound's voice-recognition technology books an Uber for you
The digital assistant is completely hands-free.
Microsoft's Cortana iPhone app rolls out to beta testers
Some iPhone users can start testing the virtual assistant from Microsoft.
Cortana won't help you on Xbox One until next year
Master Chief's virtual assistant won't make her official appearance on Xbox One until 2016.
Cortana officially arrives on Android via public beta
Microsoft's virtual assistant is available on Android devices, but you won't be able to use the "Hey Cortana" command.