LinkedIn Influencers - LinkedIn's publishing platform opening to all
iPR Software - iPR Software offers PR online newsroom, social media integration, marketing portal, media tracking, and media database management solutions.
PR.co - Beautifully designed newsrooms for the world's leading brands.
Muck Rack - Muck Rack is a public relations and communications software built for the digital, traditional and social media world.
Bloggerwork - A self service influencer marketplace.
AgilityPR - Agility PR Solutions (formerly MediaMiser) offers a suite of products and services for PR Marketing.