I read http://observer.com/pages/offtherec.asp 'On an ordinary weekday, Mr. Carter estimated, hockey would occupy about two pages of 18 in his section, including the agate.'
Now 'agate', according to Webster http://m-w.com/cgi-bin/dictionary?book=Dictionary&va=AGATE&x=&y=
is 'a size of type approximately 5 1/2 point'. But, in context, it means, I surmise, the part of the sports section of a newspaper in which the results of minor sports - or the minor leagues of major sports - are recorded in the briefest form possible, typically in a font size requiring the use of a magnifying-glass by non-carrotoholics.