11. The method according to claim 9 , wherein the modifications include changes to attribute values associated with the selected user context object that describe behavioral, search and informational needs of the avatar.
9. A method for performing a search for a resource in a virtual universe using selectable and modifiable user context objects, comprising: presenting a plurality of user context objects determined for an avatar that is online in the virtual universe, wherein the presenting of the plurality of user context objects to the avatar includes deriving the plurality of user context objects from all of the following: inventory items belonging to the avatar, teleportation history of the avatar, motion history of the avatar and social tagging behavior exhibited by a user of the avatar in the real world; receiving a user context object selection from the avatar, wherein the user context object selection contains one of the plurality of user context objects determined for the avatar and any desired modifications made to the selected user context object; receiving a query from the avatar; and performing a resource search for the query in accordance with the selected user context object; and providing results from the search to a robot avatar that is configured to allow the avatar to interact anonymously and semi-autonomously within the virtual universe in response to a modification made by the avatar to the selected user context object.