Parents need to know that Journey North's site is an excellent reference for any kid interested in tracking the annual fall migration of monarch butterflies to and from Mexico. There's no inappropriate material or ads. Registration is required if kids want to post monarch sightings or participate in the "symbolic migration" with their class (paper butterflies are sent to children in Mexico, who send them back when the butterflies migrate back north).
Educational value:Lots of fascinating facts and media can be found, as well as some classroom activities.