Stylish Indexes for your WordPress Blog. Create alphabetical indexes of your posts, with headings, subheadings, and descriptions, based on post title, …
Order your posts alphabetically for each selected categories.
WP-SNAP! (WordPress System for Navigating Alphabetized Posts) creates an user interface for navigating alphabetized post titles.
Create and display a list of first characters for post/cpt titles which link to an archive of the posts/cpts that begin with that character.