AdPlexity - AdPlexity is a popular and highly effective competitive intelligence service in the world and is a perfect fit for individuals looking up to their ad campaigns and crush the competition.

Q-Stats - Get free marketing insights for every question on Quora.

MyAdLibrary - MyAdLibrary is the marketing tool that provides you the features to monitor and spy the results of the Facebook ads.

HypeStat - HypeStat is free statistics and analytics service, where you can find information about every website.

AdWhistle - AdWhistle is a web-based platform that provides you the features and tools to create a campaign strategy and run the ads successfully on various social media platforms.

Site Rank Data - View historical rank information of websites via time series charts.