Gentlemen, where is the Share button? All other sites have them by now, but on Wikipedia one cannot even find its definition in http://en.wikipedia.org/wiki/Share . At least on ones account preferences there should be a way to "activate sharing with the following websites ... " causing a share button to appear in the navigation menu. If there is an extension, then wikipedia should install it and not depend on browser plugins, etc. OK, I made https://bugzilla.wikimedia.org/show_bug.cgi?id=31853