Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
GrepWords - Grepwords is an API-first Google Keyword Suggestion Tool.
LiveIntent - LiveIntent is a web platform that offers effective e-mail advertising services for marketers and publishers.
SheerSEO - SheerSEO helps you to track Google Search Engine Rankings for critical keywords. PageRank, Back Links and more.
Affise - Affise offers performance marketing solution to manage and analyze affiliates, advertisers, creatives, conversions, offers, and payments.
iSpionage - AdWords competitor keywords with the click of a button and monitor competitor PPC landing pages.