The link Flora provided should give you all you need, but note that MZ Tools is no longer free. It's the best add-in for Access, at least in my opinion, and will make your coding life much, much easier. It's well worth the money ...
Jim Dettman (EE MVE)
What are you looking for? While the list that was pointed to is good, it is quite old and much of it applies only to developers.
Several of the more popular add-ins that are used by developers are no longer free (ie. MZ Tools).