Statista - The Statistics Portal for Market Data, Market Research and Market Studies
Site Rank Data - View historical rank information of websites via time series charts.
SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.
Q-Stats - Get free marketing insights for every question on Quora.
Forrester Research - Forrester works with business and technology leaders to develop customer-obsessed strategies that...
HypeStat - HypeStat is free statistics and analytics service, where you can find information about every website.