Here's a good site I've used, for anyone who may want it:
http://www.interq.or.jp/japan/se-inoue/e_eagle.htmThere's some good polygon stuff in "Grounding pattern making".
(in the "Board making techniques" section)
BTW- As Ted mentioned, remember your fill patterns won't appear until
after the ratsnest command, so even if you close the board, it'll look
like they're gone when you re-open it. Totally screwed me up for a
while. :(
Also, remember you can change any of those layer colors (or names too,
I think). You just double click the colored square or name in the
"Display/Hide Layers" list. I often switch a couple of the weird ones
to a light colorful look, to draw temporary traces and stuff, so I can
easily see them against the regular top/bottom layers.
Take Care,
George