Abstract: A system for external monitoring of networked digital file sharing to track predetermined data content, the system comprising: at least one surveillance element for deployment over said network, said surveillance elements comprising: surveillance functionality for searching said digital file sharing and identification functionality associated with said search functionality for identification of said predetermined data content, therewith to determine whether a given file sharing system is distributing said predetermined data content.

Abstract: A system for external monitoring of networked digital file sharing to track predetermined data content, the system comprising: at least one surveillance element for deployment over said network, said surveillance elements comprising: surveillance functionality for searching said digital file sharing and identification functionality associated with said search functionality for identification of said predetermined data content, therewith to determine whether a given file sharing system is distributing said predetermined data content.

Abstract: A system for external monitoring of networked digital file sharing to track predetermined data content, the system comprising: at least one surveillance element for deployment over said network, said surveillance elements comprising: surveillance functionality for searching said digital file sharing and identification functionality associated with said search functionality for identification of said predetermined data content, therewith to determine whether a given file sharing system is distributing said predetermined data content.

Abstract: Systems and methods for associating content. In one embodiment, one or more techniques are used in associating content. In one embodiment, a unified content stream is created which includes two or more content items (or parts thereof) which have been associated with one another, for example a non-advertisement content item such as a video and associated advertisement(s).

Abstract: A system for external monitoring of networked digital file sharing to track predetermined data content, the system comprising: at least one surveillance element for deployment over said network, said surveillance elements comprising: surveillance functionality for searching said digital file sharing and identification functionality associated with said search functionality for identification of said predetermined data content, therewith to determine whether a given file sharing system is distributing said predetermined data content.

Abstract: A system for external monitoring of networked digital file sharing to track predetermined data content, the system comprising: at least one surveillance element for deployment over said network, said surveillance elements comprising: surveillance functionality for searching said digital file sharing and identification functionality associated with said search functionality for identification of said predetermined data content, therewith to determine whether a given file sharing system is distributing said predetermined data content.

Abstract: A method for secure distribution of digital content to an untrusted environment, comprising the steps of; constructing a relatively trusted environment within the untrusted environment; constructing at least two digital inputs, the digital inputs are operable in order to reproduce the digital content; transferring digital media to the relatively trusted environment such that each of the inputs is transmitted via a different path, and combining the inputs in order to reproduce the digital content.

Abstract: A valve which prevents the filling of a fluid container through a port (6) by an unauthorized party, and, at the same time, allows the filling of the container through the same port (6) by an authorized party. The valve is operated by an actuator means (10) which controls the fluid flow through the valve. The valve combines two major features: (1) operation of the actuator means (10) is by an encoded device (32) whose code is known only to the authorized party; (2) the actuator mean is sealed within the valve housing or container so that physical access to the actuator means (10) is restricted. This combination of features makes the valve tamper-proof and actuatable by authorized parties only. Also disclosed is a valve system and a method for preventing unauthorized access to a fluid container.

Abstract: A method for secure distribution of digital content to an untrusted environment, comprising the steps of: constructing a relatively trusted environment within the untrusted environment; constructing at least two digital inputs, the digital inputs are operable in order to reproduce the digital content; transferring digital media to the relatively trusted environment such that each of the inputs is transmitted via a different path, and combining the inputs in order to reproduce the digital content.

Abstract: A system for external monitoring of networked digital file sharing to track predetermined data content, the system comprising: at least one surveillance element for deployment over said network, said surveillance elements comprising: surveillance functionality for searching said digital file sharing and identification functionality associated with said search functionality for identification of said predetermined data content, therewith to determine whether a given file sharing system is distributing said predetermined data content.