Abstract: The present invention relates to a method and system for monitoring peer-to-peer traffic over a data network, comprising (a) file identifier unit (105) for searching the peer-to-peer network (126) according to search criteria, and retrieving identifiers of files that are shared over said peer-to-peer network (126); (b) an enabler (110) for receiving from said filed identifier unit said found identifiers, a for each identifier found, search said peer-to-peer network and finding the network addresses related to computers that contain in their shared storage at least a portion of the file corresponding to said identifier; and (c) a database (111) for storing for each of said identifiers of the network said enabler. The system further comprises an analyzing unit for analyzin (112) and processing data stored within the database, and creating matrixes representing data of peer-to-peer user's activities.

Abstract: The present invention relates a peer to peer system for enabling a mobile device user to legally search and only legally download content items by his mobile device, comprising: (a) a user software having a user interface at the mobile device for connecting to a peer to peer network, searching for a content item according to a user query, introducing the results to the user, and enabling a conditional downloading only upon ensuring payment for items that are found to be copyright protected; (b) an identification server for receiving identification information relating to a selected right protected item from said user software, searching for at least meta data and price corresponding to said item, and forwarding the found meta data and price to the user software; (c) a module within said user software for, upon receipt of said meta data and price, suspending the conditional downloading, prompting the user to appropriately pay at a billing server if the item is copyright protected, and resuming the download onl

Abstract: The present invention relates to a method and system for short-range sharing data among mobile device users and for purchasing one or more content items represented by or relating to the shared data, comprising: (a) providing a plurality of mobile devices, each having one or more short-range communication capabilities, for communicating and sharing said data with other such mobile devices by means of a software component installed within each of said mobile devices, wherein when the shared data includes a content item, the content item is prevented from being played until it is purchased from an online store; and (b) providing an online store over a data network, enabling each user of said mobile devices to access said online store, and to purchase said content item included within said shared data.

Abstract: The invention relates to a strategic peer to peer system for affecting the overall behavior of a peer to peer network, which comprises: (a) A central server having communication with a plurality of remote agent machines; (b) A task interface within said central server for enabling an operator to define a task for said remote agent machines, each task comprises a strategy and specific parameters for said strategy; (c) A plurality of remote agent machines, for each receiving said task from said central server, and each creating a large number, several hundreds or more, of peer to peer virtual users that are introduced into a peer to peer network, all said virtual users performing same strategy in said peer to peer network.