Doug Scott - Droug is addicted to starting stuff including companies under www.potential.co group:

redbrain.com - upto 1 million visitors per day shopping site
30m - a media company - 2,000,000 visitors per day
carrentals.co.uk - 1 million plus rentals
discountvouchers.co.uk - 8 million members

I also used to invest as early as possible in companies and try to help anyway possible.