CORPES (Corpus del Español del siglo XXI)
A search engine for finding Spanish words used between the years 2001 and 2012. You can see the words' source texts, allowing you to better understand their contexts. Its ultimate goal is to compile some four hundred million entries from the Spanish language, used by around five hundred million people in Spain, the Americas, the Philippines and Equatorial Guinea. The aim is to do so by the end of 2018.
Real Academia Española: Banco de Datos (CORPES XXI)
Real Academia Española