If you use any hymns that appear in any of over-5,000 common hymnals, you should take a look at hymnary.org.
This web site is a HUGE resource for all things related to hymns. It has histories of the texts and tunes as well as authors/composers.
It also has listening samples, including recordings of arrangements of the hymns.
The site also allows you to create an account and save your own data to make it easier to use subsequent visits.
You can access the site here:
If you are a user of hymnary.org share your best ideas in the area below so the rest of us can learn to use the site better.