Ninja Access – Ninja RSS Compatible

Ninja Access – allows you to hide or show portions of content depending on the access level of the viewer. It is useful for selectively hiding content from different users, such as hiding ads from administrators and subscribers. It can also be used for hiding valuable content from un-registered users while still allowing access to those with a specific groupid. Now compatible with Ninja RSS, hiding text that is in the RSS Feeds. V 2.0 * Joomla! 1.5 Native

See original here: 
Ninja Access – Ninja RSS Compatible