ThinkUp captures your posts, replies, retweets, friends, followers, and links on social networks like Twitter and Facebook. We'll be adding more networks in the future. ThinkUp stores your social data in a database you control, and makes it easy to search, sort, filter, export, and visualize in useful ways.
We thought it was 100 million. They say it's 170. That is the number of active profiles on Google plus. This has led to a storm in the social media teacup. Google is having a tough time defending this number.