Launching today, Trackle It will give website owners the ability to offer viewers custom content subscription options. The add-on is designed to let visitors subscribe to all types of new content via email or SMS, and then share it through their social network of choice.
By adding Trackle It to your site, the idea is that you'll be able to serve your audience with the subscriptions options of their choice. So whatever your content is, be it new products, travel guides, or content-rich blog posts, you can better serve the user base that wants to be notified of updates instantly via the medium of their choice.
Implementation appears to be pretty painless, and is basically determined by the quantity of customization, data being tracked, and statistics desired. But basically it's as simple as embedding a "Trackle this" button within your site's code.