Martín Alonso Pinzón  History of one of the first families of Colombia

http://www.lonelyplanet.com/destinations/south_america/colombia/history.htm A quick look at Colombian history back to 1858 "Prior to the Spanish conquest, Colombia was inhabited by Chibcha, sub-Andean, and Caribbean peoples... agriculturally based communities... After the Spanish conquest...

http://www.exchangerate.com/country_info.html?cont=All&cid=53 A site with a brief history but thorough statistics about Colombia.  Similar to CIA report.

http://www.infoplease.com/ipa/A0107419.html Nice and brief.