Newsfeed Skydrive & Sites not visible in all Site collection I created in my SharePoint 2013 environment

Hi ,

I am new to SharePoint 2013. I have setup a new standalone SP2013 server. When I try to create site collection I am not able to see the Newsfeed ,SkyDrive & Sites in the top link bar. Do I need to activate any services or did I missed any step while setup of SP2013 server.