Quantcast Measure - Quantcast Measure provides free cross-platform audience measurement for a mobile app, website, network or platform.
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
Affinio - Affinio is an advanced marketing intelligence platform that leverages the interest graph to understand today’s consumers.
Drupal - Drupal - the leading open-source CMS for ambitious digital experiences that reach your audience across multiple channels. Because we all have different needs, Drupal allows you to create a unique space in a world of cookie-cutter solutions.
Talkwalker - Talkwalker Consumer Intelligence Platform: built for speed of insight, ease of use, and data democratization
Joomla - Joomla! is the mobile-ready and user-friendly way to build your website. Choose from thousands of features and designs. Joomla! is free and open source.