Mollom

A session ID is a unique token that the Mollom server assigns to a session and specific operation that a site visitor tries to perform. The first in a series of requests to the Mollom server requires no session ID. Mollom generates and assigns a new session ID and returns it to the client. Any further operations performed on this message must include its unique session ID. For example, if a user edits a message previously checked by Mollom, the client needs to send the new message data to Mollom together with its previously assigned session ID.