MySocialApp - Seamless Social Networking features for your app
Popsters - Analyze your social media pages and spy on your competitors
Manyverse - A social network off the grid
SaaS Startup Content Marketing Playbook - Proven content marketing tactics to grow your SaaS startup
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
Content Marketing Stack - A curated directory of content marketing resources