I am a teacher from the Netherlands and I am always looking for new ideas to use in class. I use songs a lot. For example the song "Frere Jacques" (I don't know the name of this song in English, but I am quite sure you know it too) my students use...
www.stilus.nl: Dutch website with a lot of useful material for in class like poems and cartoons
http://www.hs-augsburg.de/~Harsch/augustana.html: ideal site for original texts in Greek and Latin (and Celtic and a lot more) online
Favorite on-line spots for education:
http://school.discoveryeducation.com/schrockguide/: especially her weekly newsletter!