If you are trying to find out "site collection features" link in the site setting page in sharepoint 2010 and you couldn't find out the site administration section at all this is because the logged in user doesn't have a permission as a site collection administrator, open central administration site:
1) Select application management tab.
2) Click on change site collection administrators link under site collection tab.
3) add your self as site collection administrator.
4) refresh the site settings page and you will see all site collection administration section.
Hope this helps.