Abstract: A system for users of web browsers a global communications network to communicate messages when visiting the same web sites. A client is installed with each browser and a server is provided remotely on the network. The client communicates its user's member and current web site information to the server. The server associates the users into sets at the respective web sites and informs each user's client who the other users are at the same web site. The client displays this to its user. Using their client, an author user inputs a new message that is communicated to the server, and the server communicates this new message to the clients of all users at the same web site as the author user. The clients then display each new message as received.