Facebook Tests Using Profile Picture Thumbnails in More Feeds Stories

Users are seeing more faces than ever in their feeds as Facebook complements more stories with multiple profile picture thumbnails. Friendship confirmation stories now display thumbnails of your friend’s new friends, and rows of thumbnails (we’ve seen as many as 17 at once) accompany profile pic change feed items. While currently contained to rather benign stories, the potential inclusion of the thumbnails in other stories raises the question: has Facebook developed a new form of peer pressure?