구글 차트api

http://chart.apis.google.com/chart?cht=p3&chd=t:50.23456,40.485647,30.26264&chs=250x100&chl=A=30%|B=50%|C=30%

머 간단하군요

더 자세한건 여기로

http://code.google.com/intl/ko-KR/apis/chart/