"Other" Responses

If your company monitors blogs, how is that typically done?
Other: N.A.
Other: Don't really know how to monitor them
Other: No system for doing this - one or two people are blog-o-philes and they keep people a breast, but not formally
Other: our own monitoring service.
Other: no monitoring
Other: Get periodical reports from PR monitoring service
Other: both internal and external
Other: We don't formally monitor blogs
Other: doesn't do it