There's shed-loads of spoliers, so don't peak if you haven't been watching or you live in the US:
- Who is Dr Who - a kinda 'Who conspiracy theory' website.
- UNIT website - the password is "bad wolf" (at the moment). It was changed from "Bison" earlier in the series. Excellent 'literature' page for new recruits.
- GeoComTex - take a look at the products page. They seem to make "Argentum Ordnance" (or silver plated bullets). Popular for offing werewolves.
- The Bad Wolf website. Hmmm, why is this phrase turning up in every other episode? - check out the hidden messages on the disclaimer page.