SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Google Doc Publisher - Make Google Docs good-looking in two clicks
DeskAlerts - Send alerts to any corporate device: PCs, phones, tablets, etc.
Content Editor 2.0 by Surfer - Content Editor is the most advanced content optimization tool that allows you to write and grade your work.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
SEO Minion - Chrome extension & Firefox add-on to help you with SEO