Over the past few days, tech sites have been reporting that some Gmail users were seeing a new option in their email web-settings that allowed them to switch between multiple Gmail accounts without logging out. Today, Google has made this new feature official. On the official Gmail Blog, Engineering Director Macduff Hughes wrote: “You can visit google.com/accounts and click the link next to ‘Multiple sign-in.’ After you sign into your first account, you can sign in with up to two additional accounts from the new accounts menu in the upper right hand corner of Gmail, then easily toggle back and forth between them. You can even open multiple Gmail tabs — one for each of your accounts.” The blog does note that not all Google services support multiple account sign-ins yet and that this feature will not work in offline mode or on your mobile device. All things considered, we’re sure this new feature is welcomed by those who are trying to manage multiple Gmail accounts.