American history buffs who do not have the time or money to travel to Washington can find plenty to browse – for free — on the Library of Congress Web site. Digitized sound recordings from the National Jukebox Project, archival newspapers and thousands of photographs are there for viewing, with many available items for download. Other sections of the site host classic posters from the Works Progress Administration, a collection of 2,100 early baseball cards and a “Show Music on Record” database that catalogs musical recordings. With Memorial Day just ahead, the Veteran’s History Project, which collects and preserves the personal stories of American war veterans, may also be of particular interest.