ContextGain (a product by Doclix) is a fast, easy and free way to give website's visitors convenient access to related content from premium sources while increasing their ad revenue from their existing ad provider (e.g. Google AdSense). ContextGain is very easy to integrate. Using a self-service interface, website owners and bloggers can enhance their website with links to related content from premium sources by simply adding a few lines of HTML code to their pages. The ContextGain platform is called when a site visitor views a page containing the ContextGain HTML code. ContextGain then uses advanced semantic algorithms to automatically select keywords and phrases from the web page that may further interest the reader, and double underlines them. When clicking on those links, a small window with related news stories and articles will pop up. This window may also carry the publisher ads, allowing the publisher to generate additional ad revenue. Clicking on a related article link opens a new window, giving the reader access to related content from premium sources without leaving the site.