Useful links:

The Online Writing Lab (OWL) at Purdue:
Contains helpful guidelines for developing essays.
http://owl.english.purdue.edu/owl/

MLA Style Guide (Purdue OWL):
MLA stlye and citation standards. 
http://owl.english.purdue.edu/owl/resource/557/01/

APA Style Guide (Purdue OWL):
APA style and citation standards.
http://owl.english.purdue.edu/owl/resource/560/01/

How-to-Study:
A website that provides helpful hints on how to organize time, plan ahead, and get the most out of study-sessions.
http://www.howtostudy.org/resources.php