Patent ID: 8874646

Claim:
A method for managing message information using a processor, the method comprising: generating a plurality of contents nodes and contents node address information corresponding to the respective contents nodes to sequentially store message information, the message information transmitted from user terminals via a data network, wherein a first contents node is generated upon transmission of a first message from a first user terminal and a second contents node is generated upon transmission of a second message from a second user terminal; setting, by the processor, a priority of the contents nodes according to the highest node and the lowest node based on a sequence of time of the sequentially stored message information, wherein the first contents node being as a next contents node stores a second contents node address information and the second contents node being as a previous contents node stores a first contents node address information; upon receiving a new message from the first user terminal, updating the contents node by resetting previous contents nodes and next contents nodes with respect to the first contents node and the second contents node to make the first contents node a higher node than the second contents node; and deleting contents nodes starting from the lowest node, wherein non-deleted contents nodes are determined whether to be filtered.