I had lunch yesterday with Will Arnold and Richard Laven. They are now running Performance Research Centre and provide the Apollo Analyst Database (along with a range of other media relations surveys, reports etc).
In their own words, "this service means you can target analysts, trace their relationships with the media, and gauge their standing within the media."
We've been using the service for a while now and it's proved very useful in helping us determine which analysts and journalists are interacting. It's particularly good at identifying which journalists are quoting which analysts.
If you're in the UK AR market you will undoubtedly know one or the other if not both. If you don't, then check out their website at http://www.apollosurveys.com