Google+ is a place to connect with friends and family, and explore all of your interests.
Discover, Share, and Present presentations and infographics with the world’s largest professional content sharing community.
StumbleUpon is the easiest way to find cool new websites, videos, photos and images from across the Web. We make the best recommendations just for you.
MetaFilter is a community weblog that anyone can contribute a link or comment to.
Google+ is a place to connect with friends and family, and explore all of your interests.