Writing Prompt Resources

(This is a cross post from TJ’s Student Gallery)
Looking for writing prompts?
Here are some places to get lots of them:
http://thewritesource.com/topics.htm#one (by Grade (First - Twelfth))
And here are links to loads more, but these are not by grade:
http://www.enchantedlearning.com/essay/ (these have the prompts on worksheets as well as listed)
http://www.gigglepotz.com/writingone.htm (nice for younger kids, goes by the [...]