I wish I had come across the work of Andrew Hodges before! Check out the papers:
1. Twistor diagram recursion
2. Helicity-independent formalism
Unbelievably, when I google MHV and operad, which I do periodically, I still get no hits (other than here). There are thousands of hits for MHV. What is everybody doing?
Arcadian Functor 
kneemo said,
May 26, 2007 @ 5:55 am
Yes, Andrew Hodges rocks! I remember coming across his website during my undergrad days. His 1990 twistor-string paper was surely ahead of its time.
L. Riofrio said,
May 29, 2007 @ 6:26 am
It seems like the real groundbreaking work gets ignored initially. That is part of being ahead of the time.