Twitter's new feature for businesses makes it even easier to hop on the social network and use it for customer service. It enables companies, startups, establishments and so on and so forth to indicate that their accounts can assist people looking for help. So long as they enable the feature on Twitter's Dashboard, you'll see the words "Provides support" when you search for their username or @mention them in a tweet. It can pretty handy to know if you can expect a response on Twitter, so you don't have to mentally prepare yourself for an hour-long hold time.