Abstract: A system and method allows one or more users to purchase an offering of goods or services using at least three computer systems, by one user making a proposal for the two to jointly consume the offering, and the other user accepting the proposal.

Abstract: A system and method uses any or all of information of a user and/or user's activity at a second web site, information of the user's friends or other connections at the second web site, or registration information of the user, to determine whether to allow the user to communicate with other users of a first web site, prevent the user from communicating with other users of the first web site, or monitor the user's communications and allow or prevent the user from further communication based on the monitored communications at the first web site.

Abstract: A system and method assists a user in achieving one or more goals of the user or the operator of a web site, application or other media by comparing a series of two or more actions of a user to those of other users, and identifying whether a primary action has been requested or performed by the user, or determining if a first piece of information has been specified by the user as being in a first set, and a second piece of information has not been specified or has been specified in a non-committal manner, and then provides relevant information to the user to instruct the user how to perform the primary action or to notify the user of the consequences of not specifying the second piece of information or specifying it in a non-committal manner.

Abstract: A system and method allows users to provide, edit and order photos or videos that other users can use to determine interest in that user. If both users indicate interest in one another, communications between such users are enabled.

Abstract: A system and method uses any or all of information of a user and/or user's activity at a second web site, information of the user's friends or other connections at the second web site, or registration information of the user, to determine whether to allow the user to communicate with other users of a first web site, prevent the user from communicating with other users of the first web site, or monitor the user's communications and allow or prevent the user from further communication based on the monitored communications at the first web site.

Abstract: A system and method validates user supplied photographs and/or characteristics using a video, audio or series of images of the user responding to instructions, and uses such validation in searching and/or matching.

Abstract: A system and method uses any or all of information of a user and/or user's activity at a second web site, information of the user's friends or other connections at the second web site, or registration information of the user, to determine whether to allow the user to communicate with other users of a first web site, prevent the user from communicating with other users of the first web site, or monitor the user's communications and allow or prevent the user from further communication based on the monitored communications at the first web site.

Abstract: A system and method updates a consumer's preference information not only as a result of explicit preference information received from the consumer, but also resulting from actions of the user.

Abstract: A system and method validates user supplied photographs and/or characteristics using a video, audio or series of images of the user responding to instructions.

Abstract: A system and method blocks or removes user accounts or complex information of user accounts that has or have a correspondence with complex information of other accounts or complex information on a blacklist.

Abstract: A system and method allows one or more users to purchase an offering of goods or services using at least three computer systems, by one user making a proposal for the two to jointly consume the offering, and the other user accepting the proposal.

Abstract: A system and method allows one or more users to purchase an offering of goods or services using at least three computer systems, by one user making a proposal for the two to jointly consume the offering, and the other user accepting the proposal.

Abstract: A system and method uses any or all of information of a user and/or user's activity at a second web site, information of the user's friends or other connections at the second web site, or registration information of the user, to determine whether to allow the user to communicate with other users of a first web site, prevent the user from communicating with other users of the first web site, or monitor the user's communications and allow or prevent the user from further communication based on the monitored communications at the first web site.