For Spanish students

GRAMMAR:
Study Spanish
Artículos determinados  
Expresiones con preposiciones
Preposiciones con "en" y "con"
Preposiciones con "a"
Preposiciones con "de"
Silabificación y acentos (Recomendado) 
Subjuntivo 
Tiempos perfectos 
Actividades de repaso para varios puntos gramaticales en español: Quia.

TUTORING:
Varsity Tutors 
Live Lingua

DICTIONARIES:
Real Academia Española (Spanish)
Wordreference (English-Spanish)

NEWSPAPERS:
El País (España)
BBC en español (Reino Unido)
CNN en español (Estados Unidos)
El Nacional (Venezuela)
NTN24 (Colombia)

ENCYCLOPEDIA:
Artehistoria
Enciclonet

For Curious people (like me)

TOOLS FOR RESEARCH:
Zotero, easy-to-use tool to help you collect, organize, cite, and share your research sources. (It is wonderful!)
Dialnet, database of articles from peer review journals. Useful for independent scholars with no institution affiliation. 

BOOKS:
Digitalia, Spanish digital books.
Hispabooks, Contemporary Spanish books translated into English.
Iberlibro, hard to find books in Spanish.

WHAT IS GOING ON IN THE PROFESSION?:
MLA Commons, several resources to facilitate networking and collaboration.
Academia.edu, share your research.
Vitae, News and Advice for Higher Education Professionals.
*The CFP List, an Academic Call for Papers Database!!!

JOURNALS:
Revistas literarias electrónicas, list made by the Centro Virtual Cervantes. 
Letralia, Tierra de Letras.

DIGITAL LITERATURE:
Electronic Literature Collection 1.
Electronic Literature Collection 2.
Legato by Nicolas Clauss.
Twitterature.