How To Log Into Multiple Accounts On the Same Website At Once - How-To Geek | information analyst | Scoop.it
From www.howtogeek.com - October 14, 2012 4:56 PM
If you ever want to sign into two different accounts on the same website at once – say, to have multiple Gmail inboxes open next to each other – you can’t just open a new tab or browser window.

Via Patty Ball