17. The computer program product of claim 16 further comprising computer executable instructions embodied in a computer-readable medium for performing steps comprising: receiving a preference from the first party for sending the topic descriptor to the second party; and sending the topic descriptor from the first party to the second party based on the received first party preference.
17. The computer program product of claim 16 further comprising computer executable instructions embodied in a computer-readable medium for performing steps comprising: receiving a preference from the first party for sending the topic descriptor to the second party; and sending the topic descriptor from the first party to the second party based on the received first party preference. 18. The computer program product of claim 17 further comprising computer executable instructions embodied in a computer-readable medium for adjusting the topic descriptor weight based on the received preference for sending the topic descriptor.