Fakespot - Fakespot spots, analyzes and identifies fake reviews - helping you out when buying stuff online
KeywordTool.io - KeywordTool.io is the best FREE alternative to Google Keyword Planner and Ubersuggest. It uses Google's autocomplete feature to get over 750+ long-tail keywords for any given query.
ReviewMeta.com - Copy & Paste any Amazon product URL for a detailed review analysis, including a recalculated...
Google Trends - Explore Google trending search topics with Google Trends.
SageMailer - The best tool for getting organic Amazon reviews and seller feedback. 100% Amazon compliant. Monitor reviews & get notifications for unlimited ASINs. Multilingual templates for all Amazon marketplaces.
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition