Google Account Switcher is an extension for the Chrome browser that makes managing multiple Google accounts easier. If you have more than one Google account (or Gmail account) you can quickly switch from one account to the other using this extension.
When this extension is installed, after the signing in to Google you will see a drop down list in place of the usual Sign-out link. On this drop down menu you can add or remove your other Google accounts. By using the password remembering option you can automatically login to your other accounts by simply choosing it from the menu.
Be aware that Google Account Switcher is not a cookie-swapping addon, like those available for Firefox (CookieSwap or Multifox). Unlike, the Firefox addons, Google Account Switcher completely signs you out from the current account and re-logins you with your chosen username and password combination.