"Just for fun" is full of popular kid's sites... not necessarily ad-free, but they're familiar places like Nat Geo, Disney, Nick Jr, PBS Kids, LEGO, American Girl, and much more! Be sure to look at 1HappyBirthday.com... they have free personalized birthday songs thousands and thousands of names! My class loves finding and playing the song for the birthday kid!
And now for my personal FAVORITE... the place I visit every school day- Brain Breaks! There are so many good ones out there, right?! I got tired of saving a few to my favorites and having to look them up- or googling what I wanted... So I put them all in one place!
I've also got a few iPad app ideas and links to digital story books.
I can't keep a good thing to myself- so I'm sharing and hoping you and your students can benefit from it! Have fun!