http://www.keywords-consultants.co.uk/
Link from Dafydd. Interesting business offering cost per acquisition based online marketing services. Worth pursuing at the relevant time.
http://flashtalking.com/
Tagline "Online advertising technology. made simple". Not quite sure what it does, but looks worth remembering.
http://www.cafepress.com/
CafePress allows you to create your own virtual shop of tshirts, mugs, and other merchandise. You upload the design and they handle the rest.