It would be helpful to a visitor to my site to hover over any nav-bar tab and see a box of text appear that offers general info on the content under that tab. This would be in addition to the drop-down of other structural titles.
In order to not make this feature to become bothersome, it would be helpful to have a "stop displaying this text" link that de-activates this popup feature on subsequent visits.
It may be best for this popup to appear on top of the sidebar while it is active. This is merely a Nicety - not an important feature that HAS to be implemented