@benmschaefer tweeted: #Instagram reaches half a billion users https://t…. #Instagram reaches half a billion users buff.ly/28Ofjtn Related posts: @benmschaefer tweeted: #Instagram Hits 400 Million Users | Hacked http://… @benmschaefer tweeted: https://t.co/X5BlZE81Rv @benmschaefer tweeted: Interesting: #Instagram star claiming #socialmedia… @benmschaefer tweeted: Hörtipp: Soziopod zum Thema Hass im Netz https://… @benmschaefer tweeted: #Vorratsdatenspeicherung tritt in Kraft – https:/…