Picking refinements

Doing some playing style refinements ;)
Found and interesting article http://www.americanguitarinstitute.com/pick.htm

Snippet: Here is a list of exceptional guitar players and the different picks they use.

Yngwie Malmsteen - Dunlop 1.5mm Delrin
Al DiMeola - D'Andrea Heavy Celluloid
Dave Mustain - Dunlop .73mm Tortex
Marty Friedman - Dunlop .88mm Tortex
Paul Gilbert - Ibanez Heavy Celluloid (sharp tip) / Dunlop .73mm Tortex
Brian May - An English Penny
Metallica - ....who cares??
Eric Johnson - Dunlop 1.38mm Jazz III Red Nylon
Steve Vai - Ibanez Heavy Celluloid standard shape
Chris Impellitteri - Fender Heavy Celluloid
Michael Angelo - Dunlop 1.38mm Jazz III Black Nylon
Francesco Fareri - Dunlop 2.0mm Big Stubby
George Lynch - Metal (during the early Dokken days)
Slayer - D'Andrea Heavy Triangle picks
Shawn Lane - Dunlop 1.38mm Jazz III Red Nylon

Some ideas there....

Other links:
Pick and Fingerstyle Tech
Alternate Picking Tech
Sweep Picking Intro
Alternate Picking Lesson