Being new to almost any music that uses the conga, I've had a hard time finding the info I need to understand stuff. I ran across University of Salsa--very, very useful.
This site may be old news to many of you--I just discovered it accidentally while searching for "guajira". I hope other neophytes such as myself find it useful too.
http://www.planetsalsa.com/university_of_salsa/glossaryae.htm
The glossary alone made the trip worthwhile!!