http://www.navavani.org/
http://www.sanskrit.nic.in/
http://www.sanskrit.org/
http://www.samskrtam.org/
http://sanskritdocuments.org/
Learn Sanskrit through self study
http://acharya.iitm.ac.in/sanskrit/tutor.html
Sanskrit Tutor
http://www.sanskrit-lamp.org/
Learn Sanskrit Online
http://www.learnsanskrit.org/
Glossary of Sanskrit terms
http://www.selfdiscoveryportal.com/cmSanskrit.htm
http://www.claysanskritlibrary.org/extras.php
Sanskrit Dictionary
http://sanskrit.inria.fr/
http://dsal.uchicago.edu/dictionaries/macdonell/
Online Sanskrit Pronunciation guide
http://www.tilakpyle.com/sanskrit.htm
Shankaracharya University
http://www.ssus.ac.in/