Perhaps you only want to add a link to your page of databases that start with a "H". Maybe you want people to see a list of journals that start with "W." Whatever your reason, here is how to link to the alphabetic lists of databases and journals.
For databases use the address: http://researchport.umd.edu/databases&alpha=H
The "H" at the end can be replaced with a letter of your choice!
For journals use the address:...UH-OH!!
Unfortunately, you can't link to the journals' alphabetic listing yet. Hopefully this will change soon and this guide will be updated!