A technique for rewarding a user's interaction behavior in a computer network environment, such as the Internet. A rewared is provided for following a hyperlink in a first document to a second document and then returning to the original document again. The reward can be provided in terms of (positively...http://www.google.de/patents/US20030120542?utm_source=gb-gplus-sharePatent US20030120542 - System and method for rewarding a user's interaction behavior with a computer system
