Google Friend Connect has added several new ways for you to make your site more engaging and gives your visitors a new way to interact with your content and other visitors. Here is a quick overview of these gadgets:

Event gadget - promote an upcoming event to your community
Polls gadget - publish opinion polls and adds a social element
Get Answers gadget - encourage visitors to ask questions of the community and answer questions posed by other community members.
Comments gadget

Source:→ GWC Blog