This Article explains it pretty well i think. After the entry of Facebook into the German market Holtzbrinck got out again and sold StudiVz and MeinVZ to Vert Capital , which was renamed the VZ networks in Pool Works. http://translate.google.com/translate?sl=de&tl=en&u=https%3A%2F%2Fwww.heise.de%2Fnewsticker%2Fmeldung%2FStudiVZ-und-MeinVZ-US-Unternehmen-will-Poolworks-uebernehmen-3522356.html