This page has an interesting set of links organized by country. Its subject directory is available in Spanish, English and Portuguese. The organization involves and serves all Hispanic nationality groups. All medical information needs to be carefully reviewed with your health care provider. It has many relevant links to literary sites.
Reflexiones is a very good resource for biographical information, list of prizes and conferences.
This site has an interactive citizenship preparation exam. INS examiners select questions from this list of 100 when they interview aspiring citizens on America's history and government. It is searchable in Spanish and English. It offers free e-mail and Internet access. It contains multiple directories for Latin America and the United States.