The full text of Angelina Grimké Weld's antislavery speech at Pennsylvania Hall is available through PBS.

Several more primary-source documents pertaining to slavery and abolition are also available online through the PBS Africans in America series.

"I will be heard!" is an excellent collection of documents and descriptions from the Cornell University Division of Rare and Manuscript Collections.

The full text of the Court opinions and the arguments in the Amistad case are available from University of Missouri-Kansas City School of Law.

Sojourner Truth has a well-earned institute named after her in Battle Creek, Michigan.

The University of Pennsylvania has also made Sojourner Truth's Narrative available on their website.

The Library of Congress has made Frederick Douglass' papers available online, complete with a searchable-by-keyword feature.

Pomona College lets you peek at primary sources on Lucretia Mott and the women's rights movement.

The Avalon Project at Yale Law School archives documents from pre-eighteenth century to the present. This page contains several primary-source documents on slavery, antislavery movements, and legislation.