Let Editors See the Users List (Read-Only)
Lets editors open the Users screen to look people up, without being able to add, edit, promote or delete anyone.
Snippet Library
Users snippets for WordPress
Snippets for user accounts, roles and profiles: extra profile fields, new columns in the users list, last-login tracking and tighter control of what each role can do. Handy for membership sites, client sites and teams with many authors.
Stop Users From Changing Their Email Address
Makes the email field read-only for everyone except administrators, for sites where the email is tied to a contract or a login policy.