Packed with all the wholesome documentary goodness and gorgeous photos you’d expect from National Geographic magazines (each linked here), mouse-click adventurers will admire National Geographic Online‘s ( vast coverage and witty, peripatetic motif: The handy Passport boasts subject-headed pages and animated ”stamps” that provide entree to instructive interactive destinations — including Hawaii’s natural attractions, a haunted medieval castle, and Manhattan’s spooky subterranean world. Boarding Passes transport users to cool links like the lists of must-know science and pseudo science (from stats on bats to the Bermuda Triangle) and the souped-up Map Machine, which generates both physical and political maps. But you’ll need add-ons aplenty to fully enjoy the site’s lush multimedia offerings — the striking video of lightning, for instance — culled from Geo‘s TV specials. A-