Social networks have a nasty habit of yanking you out of what you're doing. PowerInbox lets you keep up with what's happening without leaving your email tab.
PowerInbox is an extension for Chrome, Firefox, Safari and Internet Explorer that adds a sidebar to your Gmail, Outlook and Yahoo! mailboxes that lets you keep an eye on sites like Twitter, LinkedIn, Facebook and Instagram. Get all that? Obviously, you'll want to keep work and play separate though — maybe you put LinkedIn in your work inbox and Twitter in your personal one, or your professional Facebook page in your work inbox.
No matter what you do, this extension can help simplify things if you regularly keep multiple tabs open.