And there, I had it - we need a Web site to monitor nepotism, and backscratching influence-peddling more generally. WhoseKidAreYou! There's been quite a lot of work on designing machine-readable ways of expressing relationships between people, but to start with, I reckon we need a decent wiki server or else perhaps a Django install, and the British journalists section of Wikipedia as a start. We can crowdsource the rest; we've got bitterness and resentment on our side, plus a powerful kicker of personal loathing!
We'll need to hold basic biographical data, plus job and publication history, a link to corresponding Wikipedia data, and of course, the crucial affiliations. Not just WhoseKidAreYou, but also WhoseThinktankDoYou"Work"For. Once we've got a reasonable amount of data, we can think about social-graph visualisations and other fancy twirls; we could also do a browser extension that picks out bylines, searches the DB in background, and shows a notification. "Did you know this was written by Christopher Hitchens' illegitimate son, working for a thinktank founded by Douglas Murray?"
I am deadly serious about this, and I would like your comments. The project isn't really suited to MySociety.org - it's far from neutral and it's explicitly partisan and generally vicious - so it'll have to be unilateral. I've set up a Google group (aka a mailing list/usenet group) over here.
UPDATE: More is here, including how to take part.
UPDATE UPDATE: Hugo Rifkind has been in touch, to point out that I misspelled the title of his book.