“Footnote Millions of Historical Documents Online” by Solution Watch recommends Footnote, an historical documents online service developed in partnership with the US National Archives:

Footnote is an impressive resource which launched last week that allows users to access and annotate millions of historical documents online for the first time. Interested in the Civil War or perhaps the Bureau of Investigation? Just look it up on Footnote and within seconds view digitized copies of the original documents including photographs, signed documents, letters, case studies and more. Footnote has also established a partnership with the National Archives providing access to millions of historical documents for viewing online. Around 4.5 million documents have already been added to the site and apparently millions more to come. I’ll admit, I wasn’t one to raise my hand during history class, but it’s pretty neat being able to view transcripts that George Washington wrote back in 1775 for the Continental Congress and the signature of John Hancock. I’d imagine Footnote to be a prime attraction for genealogists, historians, public libraries, school systems and history buffs in general.

On top of viewing original documents online, Footnote encourages users to share their knowledge by uploading images, annotating documents and maintaining member pages. Users can also download any image on the site and add it to their account gallery.

Adobe Flash Player is required for viewing the images. The annual membership for looking around at the documents is free. Some images on the site can be viewed and downloaded for free, but member subscriptions are required for other areas and access ranging from USD $1.99 per image download to $99.99 a year.