HopperHQ.com - Fully automated Instagram scheduler. Create and schedule your posts online.
Website Grader - Grade your website's strengths and weaknesses in seconds.
Buffer - Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
Checkbot - Checkbot will boost the SEO, speed and security of your site by checking you're following 50+ web best practices. Browser extension with free and paid plans.
Gifvista - GIF templates to boost your social media engagement
PageSpeed Ninja - One-click page speed boost for WordPress