If you're looking for a web site that will help you look at many options for helping your children learn Spanish, Learn Spanish for Kids is a good place to start.
The creator of this site has done his reseach. He starts you off with online Spanish lessons. He has links to many sites as well as tips and insight for learning and teaching Spanish.
He shares the best ways to learn Spanish with several links and encourages parents to learn Spanish as well with suggestions for the best ways to learn Spanish.
So, what's your favorite site about learning a second or even a third language? Send them to me and I'll share them in a future Biligual Day posting.