Housed at Vanderbilt University's Jean and Alexander Heard Library, the J. Le'n Helguera Collection of Colombiana is a fascinating archive of materials related to 19th-century Colombian history and culture. The materials are grouped into three separate categories: broadsides, pamphlets, and programs. The documents can also be searched by date, type, or subject, and the files are available in a number of formats. While the documents are only available in Spanish, the items do offer a wide range of commentary on religious life, education, slavery, political life, and so on. The site also offers a "Featured Document" on the homepage, and there's also information on other recent additions to the archive.