In one embodiment, the menu services provide effective support for novice users by providing {HEAD ~ a full listing} of available keywords and rotating house advertisements which inform novice users of potential features and {TAIL ~ information} 
In one embodiment , the menu services provide effective support for novice users by providing { HEAD ~ a full listing } of available keywords and rotating house advertisements which inform novice users of potential features and { TAIL ~ information }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL