Sniply - Sniply is a content marketing tool providing social media conversion.
BuiltWith - Find out the technology behind websites
Animoto - Animoto turns your photos and video clips into professional video slideshows in minutes. Fast, free and shockingly simple - we make awesome easy.
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Mountaintop Data - A B2B marketing intelligence company providing marketing lists as well as data cleaning, data appending, and data maintenance services.
What CMS - WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.