Threat prevention and pro-active open source monitoring

[Chris Naegelin <naegelin () gmail com>]

Can anyone point me in the right direction for any software products or 
vendors that might do this sort of thing:

We want an intelligent agent or a group of agents to search and archive 
various parts of the web / chat rooms / usenet groups based on specific 
content which could be threatening to an organization. To be more precise: 
A discussion initiates on a newsgroup about a possible vulnerability in 
our software product or website. The agent happens to monitor this 
newsgroup and detects the conversation as a potential threat and thus 
creates a report. 

I've seen this sort of thing being called "open source monitoring" and may 
even fall under "brand protection" however if anyone can provide 
additional information as to what products may help us accomplish this or 
if any security vendors exists which already do this I'd appreciate it!

Regards,
Chris