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Google's Keyword Planner
Google Trends
Open Site Explorer
Moz Pro (requires account)
Moz Local
Moz Local Search Ranking Factors
SpyFu
Social Media Demographics (via SproutSocial)
SurveyMonkey
Google Forms can be found at Google Drive
Constant Contact
MailChimp
LeadPages
Opt-In Monster
AdRoll
Facebook Retargeting (via Facebook)
Adwords Remarketing (via Google)
Campaign URL Builder
Google Analytics
Crazy Egg
Free Chapter of The Lead Machine
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