Understanding Vedangas is a pre-requisite to understanding the Veda. Go to: Vedangs to understand more.

Content Types
Word Gyan
Shiksha (phonetics, the pronunciation and accent)
Chhand (syllables)
Kalp (about rituals)
Vyakaran (Grammar)
 Jyotish (astrology)
Nirukta (science of etymologies) 

 Please visit any of the following to learn more:

This link takes you directly Vedang page of the site. The website has many more content and worth a visit.
by Dr. Shashi Tiwari (retd.), Sanskrit Department, Delhi University