Wikipedia
Enciclonet
Enciclonet is an online general purpose encyclopedia in the Spanish language. It is based on the Enciclopedia Universal Micronet, and it has 185,000 articles and more than 20,500 multimedia items.
A 2012 study comparing Enciclonet content to that of Spanish Wikipedia found the former to be highly popular and comprehensive in comparison to other online encyclopedias available in Spanish. For this reason, Enciclonet was chosen for the Wikipedia comparison.