Link-love is in the air, and I thought I'd contribute by giving you some "intellectual popcorn."
Buried in these kernels of wisdom are some nifty places to go looking for more ideas. As Homer Simpson's smarter, older brother would say, "Intellectual popcorn, yum!" (A big hat tip to Paul McEnany.)
(If you like "intellectual popcorn," spread it around and add some more proverbs — with nice "buttery" links, of course.)