Japan’s most popular SNS “Mixi” introduced new two feature deployments today, especially on so-called “footprint” feature. You may have your own site on Mixi, and Mixi’s footprint feature allows to show you on the list when and which other Mixi users have visited your site. With today’s system renewal, new icons are prepared for “My Mixi of My Mixi” etc., that means your friend’s friend on Mixi.