Abstract: A method to provide image recognition within a video and to add time-based data to the video. The time-based data is from a manually or automatically classified and indexed video database. The time-based data is dependent upon the recognized image within the video. Hence, the time-based data is available as a function of times when the image is available.

Abstract: A method for sharing a central knowledge base across social networks, the method comprising: allowing a user to generate a piece of information and store it on a server; allowing the user to merge pieces of information into one or more collections of information which are saved on one or more servers; allowing the user to access other pieces and collections of information which are stored on one or more servers; enabling the user to request automated updates of pieces and collections of information which are stored on one or more servers; allowing the user to restrict modifications to information which he generated and which is stored on one or more servers; and allowing the user to modify pieces and collections of information which were generated by other users and are stored on one or more servers, where permission to modify the information has been granted by the first user to generate the information.