ShareThis is a really cool tool for creating free social sharing widgets, with the added benefit of in-depth analytics so you can track, test and optimise for best results. All you need to use ShareThis is the relevant widget code for your site, and integrations with WordPress, Drupal and a number of other website platforms, it’s also straightforward to get the code installed and successfully up and running on your site – without the need for technical help. The analytics side tracks the effectiveness of your social sharing widgets, providing data you can use to influence how you approach your social marketing in future.