Bulk Password Reset is a tool which can help you do a bulk password reset on all the users or just specific users within a category.
An addon for importing existing WordPress users to the Simple Membership plugin as members
This allows you to import a list of users taken from an uploaded CSV file.
Lead Forensics allows you to turn your anonymous website visitors into sales leads, convert new business opportunities before your competitors.
SX User Name Security prevents WordPress from showing your real Login by overriding the body_class function, User Nicename, Nickname and Display Name.
Restrict the usernames that new users may use when registering for your site.
Logs the username and the date/time of every WordPress login.
Ajax powered admin page to show, edit, add, and remove user meta. Choose dropdown list by User Login, ID, or Display Name.
Protect your wordpress site with spam registration. DM Confirm Email requires new users to confirm their email addresses.
Display your WordPress users and their profiles in an index on your site.
Allows users to login or register by authenticating with an existing Google, Facebook, LinkedIn, Github, Reddit (and more!) account via OAuth 2.0.
Allow and control the Editors' access to the Menus, Widgets, Customize, Header and Background areas of WordPress admin's Appearance menu, wh
Site Visitor Statistics
Provides a shortcode [people-lists list=example-list] that can insert a People List on any page,post or even sidebar to list selected users.
Requires WP-Members to be in use. Uses members' emails as their usernames. Removes the need to create a username (if wp-members is in use).
Given a user ID or login, this plugin will generate appropriate microformat compatible hCard and downloadable vCard formats for users.
Quickly send a new welcome email and password reset link for a user through the user's profile edit area.
Publish your post information by author to your Facebook profile status or to a Facebook Page.
Extends the excellent User Switching plugin by John Blackbourn by adding a User Switching to the admin bar for quick and easy user switching.
Improves the search for users in the admin significantly: Search for first name, last, email and much more of users instead of only nicename.
Require users to change their password on first login.
Edwiser Bridge integrates WordPress with Moodle LMS & provides an easy option to import and sell Moodle courses using WordPress.
Send email to users, manually or on schedule (digest of newest posts). Users can send emails to each other. Export function included. STILL BETA!!!
WP Sentry allows WordPress authors to grant access to individual private posts to users and groups of users.
The simplest way to turn your standard WordPress website with a standard WordPress theme into a Social Network.
The most simple way of controlling who sees what in your posts/pages. Restrict content to logged in users only (or guests) with a simple shortcode.
Allows the administrator to lock/ban specific accounts without deleting them.
Prevents users from staying logged into the same account from multiple places.
Plugin to promote users with no roles set (the orphans) to the role from other blog where they registered or to default if any found.
Manage Directory listings. Provided front-end form, google map support, listing, filtering.