WP-EmailWP-Email

WP-Email Usage Statistics · Download List of All Websites using WP-Email

Allows people to recommend/send your WordPress blog's post/page to a friend.

WordPress Plugins

eCommerce

WP eCommerceWP eCommerce

WP eCommerce Usage Statistics · Download List of All Websites using WP eCommerce

100% configurable shopping cart solution for WordPress from GetShopped.org.

Non Platform

Web Hosting Providers

SavvisSavvis

Savvis Usage Statistics · Download List of All Websites using Savvis

Enterprise level hosting for media, government, financial, software and retailers. Now owned by CenturyLink.

US hosting