One is Klout.com. Yes, they still exist. But the beauty is that they still make it so people can re-distribute to their followers. Buffer did do it for free, but now it's a paid service. Del.icio.us did, if I remember right. Do you know of any sites or services that will distribute articles/posts to other followers for free?
Check those: http://ezinearticles.com/ https://www.slideshare.net/ - you can turn your article into pp presentation http://www.a1articles.com/submit_articles.php http://www.tooboring.com/ http://www.sooperarticles.com/