Readly - All-you-can-read magazines on all your devices
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Zinio - Zinio transforms your favorite print magazines into digital format. Same content. Same design.
Majestic - Majestic - Link intelligence tools for SEO and Internet PR and Marketing. Site Explorer shows inbound link and site summary data.
Texture - The "Netflix of Magazines" app
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.