Verloren/Contributions

Big Ben
House of Lords
House of Commons
Indoor rower
Palace of Westminster
Power storage
Prime Minister of the United Kingdom
Xerox PARC
SMES
Minnesota
BCS theory
Mel Brooks (amazing what Wikipedia can lead you into!)
Cottingley Fairies
Minneapolis, Minnesota
Chandrasekhar limit
Blizzard
Code coverage
The Damned
Cockney rhyming slang

Major Contributions
Telephone number
Annual plant
NirvanaBand/Smells Like Teen Spirit
Ice beer
Sean Connery
Aircraft carrier
Film director
Richard Bachman/The Running Man
Robert M. Pirsig

I'm also an active wikifier and tidier, but didn't feel this warranted listing for a number of reasons.