Hi Angie,
So here's a starting point.
This VLOOKUP formula:
=VLOOKUP(F2,A2:C4,3,0)
can be also be done using INDEX and MATCH like this:
=INDEX(C2:C4,MATCH(F2,A2:A4,0))
Does that help, or do you have something more particular in mind?
MrExcel recently did a VLOOKUP Week, where lots of people around the world got together and wrote a load of articles on VLOOKUP, INDEX, MATCH etc etc
Might be worth checking out some of the articles; you can find them here (navigate using the categories section on the right hand side):
http://vlookupweek.wordpress.com/