BuiltWith - Find out the technology behind websites
Poly Mailers by Sticker Mule - Custom mailers that ship in 4 days for ecommerce shops
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Sticker Mule Wall Graphics - Custom wall graphics for your home or office
What CMS - WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.
Acrylic Charms by Sticker Mule - Add some charm to your life.