Available free to businesses users -- whether they are Salesforce.com customers or not, Chatter lets users collaborate, share, and interact via a private, secure network. Chatter works on any desktop, as well as multiple mobile devices such as iPad, iPhone, BlackBerry, and Android. Users also can receive notifications; find and share files; get reports and analytics from the software's dashboard, receive recommendations on people to follow, and invite colleagues to join the social network software. More than 60,000 companies use Chatter, according to Salesforce. Santander Consumer USA, for example, uses Chatter to share presentations, documents, and status updates, the auto-financing company said. "Our employees love using Chatter to stay informed and learn from each other," said Will Stacy IV, director of marketing at Santander, in a video.