Ecommerce Senders - Live email marketing insights for the top 100 Shopify stores
Q-Stats - Get free marketing insights for every question on Quora.
BiggerCake - The data tool that Kickstarter deserves
Site Rank Data - View historical rank information of websites via time series charts.
Mumara ONE - An intelligent email marketing automation tool
HypeStat - HypeStat is free statistics and analytics service, where you can find information about every website.