This activity started in Facebook Groups and has grown substantially. More than 450 million people visit buy and sell groups each month - from families in a local neighborhood to collectors around the world. To help people make more of these connections, today Facebook is introducing Marketplace, a convenient destination to discover, buy and sell items with people in your community. Marketplace makes it easy to find new things you’ll love, and find a new home for the things you’re ready to part with. To visit Marketplace, just tap on the shop icon at the bottom of the Facebook app and start exploring. Get the full story at Facebook and TechCrunch