So I was minding my business on Twitter (that's not entirely true), when I saw a tweet from Tech Crunch about Google introducing a stand alone site for Hangout and I decided to check it out to see how it works differently from using Hangout in Gmail on desktop.
The Google Hangout site is basically for messaging, voice and video calls as you must have guessed. You can message friends one on one and have group conversations with up to a 100 people. The video and voice calls are absolutely free - You need internet though :) and you can invite up to 10 people to a group call.
Your chats are synched from device to device and you are able to keep in touch with your friends across Android, iOS and the web.
What's more?
