Does anyone have an idea about a website that provides excellent lesson plan ideas? Does anyone have an idea about a website that provides excellent...

This may not be
exactly the type of thing you are looking for, but honestly I have gotten quite a few ideas from
perusing the TED talks, some of them about education, some about more specific subjects, but
they lend a great deal of insight and challenge the way I approach planning and teaching in a
way that has been really helpful.  You can find them on ted.com or if you know who or what topic
you are looking for most of them are on youtube.com as well.