SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.
StackAdapt - Native advertising demand side platform.
Site Rank Data - View historical rank information of websites via time series charts.
Zemanta - Zemanta is an online content and links suggesting platform that provides a plugin to the bloggers, publishers and other types of content creators.
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
Reddit - Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.