Nowadays, lots of people use multiple Google accounts (which includes Gmail, Calendar, Reader, Sites and some other products). It might be a good idea to have two or more separate accounts since Google uses the same login info for all their services.
For example, you can have two Google Accounts – one is associated with Google Analytics, AdSense and Blogger while the second Google Account is connected to Gmail, Google Docs, and Calendar.Here is two simple ways by which you can access multiple Google accounts easily.
1. Enable Quick Login For Multiple Google Accounts
Google Chrome has come up with a new extension called Quick Login and it lets you quickly switch between Google/Gmail accounts, without having to type in your username and password over and over again.
Step 1: Install ”Quick Login” in your Chrome browser.
Step 2: Once installed, go to the extension’s options to configure your Google accounts. There is a field for a name/label, enter your username and password for each account.Also specify the Google Product URL, (for example – www.google.com/adsense) to which you want to be redirected to, after the automatic login.

Step 3:Click the extension menu to automatically login and use any of the Google Services.
Your information will be stored locally on your computer and the passwords are encrypted using an advanced encryption method. However this plugin is not intended for public usage because this will allow anyone to log into your accounts.
2. Use Google’s Multiple Sign in Feature
Google has recently started offering a new feature called Multiple Sign in that makes using several Google accounts at once much easier. It works for Gmail as well as Google Code, Calendar, Reader, Sites and some other products.Incase of Gmail, First you should enable the multiple sign-in feature in all your Google accounts that you want to use it with. Look for the “Multiple sign-in” feature in your “Personal Settings” section. Click “Edit” and follow the steps provided.
After you do that, sign off and login with your primary account first; it will be set as the default one. You will notice that the Google account shown at the top of your Gmail and other product pages now became a link. You can click it and choose “Sign in to another account…” to use two or more Google accounts simultaneously on the same browser. For more details check this Multiple Sign in guide from Google.
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