Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Metricool - Analyze, manage and measure your social media activity
Majestic - Majestic - Link intelligence tools for SEO and Internet PR and Marketing. Site Explorer shows inbound link and site summary data.
GOAL - Creating perfect social media advertising
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Social media benchmarks by Socialinsider - Explore live social media competitive benchmarks by industry