Abstract: A method and system for authenticating a user's identity, studying user state and reaction, and detecting fraudulent user content associated with online activities. The method and system receives user content which may include video images, and processes the user content using facial recognition algorithms and analyzing various parameters to uniquely identify a user and a potentially fraudulent online posting, activity or profile. The method and system initiates a number of actions based on a determination that the user or posting, activity or profile is potentially fraudulent.

Abstract: A system and method that allows dynamic updating of a static email message by maintaining the status of the content of the email message on a server and remotely serving images or stylesheets relaying the current status to a user's email client when the static email digest is displayed. Other applications of the system and method include, but are not limited to, updating the status of online message board postings contained in an email digest once the original poster has accomplished what was requested in the posting, so he will not subsequently be contacted about the post by users reading the email digest.