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.

LoganSix

This plug-in will search a post and find names that match database records of people maked with the WP People Category 
in the XFN Links. When it finds a match, it will replace the name with a link to the person. There is a administration 
screen for adding people and their bios to the database viewing the current people marked for the filter. More than 
one person can be linked on a post. A individual name will only be linked once per post.
The original author of the hack stopped supporting it a while ago. I took his original idea and used another 
hack (acronymit) as a guide to make this work. The original worked with the my-hacks script used in 
WordPress 1.0.1, so this is beyond the functionality of the original.
If you were using the version 2 of Word Press People, then you will be able to see any current people in 
WP People and COPY them to the XFN database.

WP People

This is a filter that will switch out people's names for XFN Links information.

LBB vs WP People