HTC Thunderbolt User Manual page 161

Social 161
Checking notifications from your social networks
Slide to the Notifications tab to easily see a single feed of your
notifications from different social networks. It can be a comment on
your Facebook post, a mention or direct message in Twitter, a tagged
photo of you, and more.
About the Friend Stream widget
Use the Friend Stream widget so you can easily update your status
and view other people's status updates right on the Home screen.
If you don't have this widget on your Home screen, see "Personalizing
your Home screen with widgets" in the Personalizing chapter to find
out how to add it to the Home screen.