Planet Eye is a travel site with a bunch of accessible materials on places around the world. Users can easily create “Travel Packs” of places they can annotate and easily share via email for posting on a blog or website.
There are now quite a few of these sites that offer similar features. You can find links to them on my website under Student Trips.
In fact, there are now enough to warrant me writing a post on The Best Sites For Students To Create Travel Itineraries — eventually.