Might as well go straight to the source:
Federal Railroad Administration: High-Speed Ground Transportation (High-speed rail AND Maglev)
Federal Railroad Administration: About the MAGLEV Deployment Program
Maglev of Pennsylvania or Baltimore-Washington Maglev (The two projects competing AGAINST each other)
Transrapid International -- the German Maglev builder whose technology was built in Shanghai and will be used in either Pittsburgh OR Baltimore-Washington.
I have other info available on other competing Maglev technologies as well, but Transrapid is by far the most maturely developed and most probable for initial use in the U.S..
A search on "Maglev" in the FR archives will turn up some articles for a maglev people shuttle on the campus of Old Dominion University by a Lockheed associated company called American Maglev. It's finally starting to get going again after experiencing some minor technical difficulties magnified by funding snafus. (Not surprising: the project is actually quite amazing considering the comparatively skimpy shoestring budget!)
Hope that's enough to get ya going.