Abstract: A computer system comprising: a global synchronization log that stores public data associated with private data wherein the private data is stored in one or more private data stores separate from the global synchronization log; and one or more nodes operable in a mode as a writer node that has access to write the public data associated with private data to the global synchronization log. A reader node may verify the public data on the global synchronization log with private data stored in one or more private data stores.

Abstract: A computer system (100) comprising: a global synchronization log (112) that stores public data associated with private data wherein the private data is stored in one or more private data stores (132, 134) separate from the global synchronization log (112, 114); and one or more nodes (102) operable in a mode as a writer node (102) that has access to write the public data associated with private data to the global synchronization log (112). A reader node (120) may verify the public data on the global synchronization log (112, 114) with private data stored in one or more private data stores (132, 134).

Abstract: An invention is disclosed that uses methods and systems for enhancing users' Web surfing experiences by providing various functions including: delivery of content that is related to the user's present location or actions; providing collaborative browsing tools that manage the participants' rights interactively to control a particular collaborative browsing session; aggregating and then sharing with users information related to a particular Web site, action or object on the Internet; and offering various types of predefined collaborative browsing sessions in order to enhance the users' online experiences. These and other functions are accomplished via a browser companion that is downloaded or incorporated into the users' Web browsers. The browser companion communicates with a back-end server architecture that couples to various databases. The browser companion provides the appropriate server(s) with information about each user's present location or action within the network, e.g., Internet.