gistfile1.txt

http://cpsievert.wordpress.com/
https://github.com/cpsievert/pitchFX

http://fastballs.wordpress.com/2007/08/23/how-to-build-a-pitch-database/
http://www.fangraphs.com/library/misc/pitch-fx/
http://www.fangraphs.com/library/interpreting-pitchfx-data/
http://www.fangraphs.com/library/pitch-type-abbreviations-classifications/
http://gd2.mlb.com/components/game/mlb/year_2007/

http://www.fangraphs.com/blogs/the-early-trend-of-2013-dingers/#more-120259


example game: http://gd2.mlb.com/components/game/mlb/year_2012/month_04/day_01/gid_2012_04_01_detmlb_nynmlb_1/inning/inning_all.xml


R programming:
http://cran.r-project.org/doc/manuals/R-intro.pdf
http://cran.fhcrc.org/
http://www.johndcook.com/R_language_for_programmers.html