Google testing real-time chats with businesses through Hangouts
If a company is listed as available to chat, clicking on the link will open a Hangouts chat with a thread that will show the average time it takes the particular business to reply to a question. The restaurant in the example (which you can see by viewing the slideshow) replies to inquiries within hours.
Google is in the process of testing the feature, so there is no guarantee that this will end up as a permanent feature. It sounds like a promising service, though, that could be quite useful to both consumers and businesses.
source: @MattGibstein via TechCrunch, AndroidAuthority