CoSchedule - CoSchedule is the #1 marketing calendar that helps you stay organized and get sh*t done. Plan, produce, publish and promote your content.
Jetpack - Jetpack offers SEO and security plugins for Wordpress.
Embedly - Embedly helps publishers and consumers manage embed codes from websites and APIs.
WP User Manager - The most customizable profiles, community builder and membership WordPress plugin
Rocketium - A DIY video creation platform. Make videos in minutes using preset themes and templates.
UpStream Plugin - UpStream Plugin is a free-to-use project management plugin that allows you to manage various types of projects right from your WordPress site.