Muck Rack - Muck Rack is a public relations and communications software built for the digital, traditional and social media world.
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.
PR.co - Beautifully designed newsrooms for the world's leading brands.
Google Trends - Explore Google trending search topics with Google Trends.
iPR Software - iPR Software offers PR online newsroom, social media integration, marketing portal, media tracking, and media database management solutions.
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition