Sam Wilson

A simple address book plugin.
You can view and edit addresses (names, addresses, phone numbers, email 
addresses, etc.) in the administration interface (under Manage > Little Black 
Book), or embed a read-only, semantically marked-up, list of addresses in posts 
and/or pages. You can embed a list of your addresses in a blog post or page by 
putting <code>~LBB~</code> wherever you want the list to appear. The generated HTML is 
semantically marked-up, so you can fine-tune it’s appearance through your 
theme’s stylesheet. Here are the entries I use:
/—-:[ Little Black Book styles]:—-/ 
.timediff { color:red } 
.name, .address, .homephone, .cellphone { font-family:”Courier New”; font-weight:bold; font-size:larger; } 
.homephone { color:blue; } 
.cellphone { color:green; } 
.notes { font-family:Arial, sans-serif; font-size:smaller; }
<h3>Upgrading</h3>
There is no need to de-activate and then re-activate Addressbook to upgrade.
<h3>Download</h3>
The latest version is always available from the <a title="LBB" href="https://wordpress.org/extend/plugins/lbb-little-black-book/" rel="ugc">WordPress Plugin Repository</a>.
<h3>Donate</h3>
If you feel so inclined, a donation in any amount would be greatly appreciated.
<h3>Version History</h3>
1.0 First version in the repository
1.1.1 Changed the background color of the contact area for use with WordPress 2.5
1.1.2 Restored normal colors for the Edit and Delete links in the contact area. 
 (Thanks to John Marcotte)
1.1.3 Added “Cell: ” when the cellphone is not blank to make it clear, 
 especially when printed.
1.1.4 In listings, added a after the email addresses so the website appears on a 
separate line. (Requested by Aaron Patrick Michaud)

A simple address book plugin.  View addresses in the admin back-end or embedded
in a post or page.

philhoyt

Peeps – People Directory is a WordPress plugin that helps you create and manage a directory of people on your website. Perfect for displaying staff members, team rosters, or employee directories.
Features:
<ul>
<li>Custom post type for managing people profiles</li>
<li>Block templates for single person posts and archive pages</li>
<li>Configurable phone number formatting</li>
<li>Custom URL structure for people profiles</li>
<li>Public/private directory option</li>
</ul>

Peeps – People Directory

A WordPress plugin for managing and displaying people profiles.

LBB vs Peeps – People Directory