The admin bar is the fixed black bar that appears at the top of your P2 when you’re logged into your WordPress.com account. It’s an easy-to-access toolbar with a few shortcuts to some central WordPress.com dashboard pages.

• My Sites will take you to the main menu for managing your P2 — as well as your other WordPress.com sites.
• Reader will take you to the WordPress.com Reader, a tool where you can see the latest posts from any sites that you follow, including your P2.
• Your Profile (on the right-hand side of the admin bar) takes you to the Me section of your account. Here’s where you can manage your profile, account settings, purchases, etc.
• Notifications will open a dropdown displaying your latest notifications.