With Google Tag Manager, you are able to effortlessly extend the features and functionality of your blog with third-party applications. So with GTM, you can further customize your William blog.
Start using Google Tag Manager
Step 1. Go to Google Tag Manager and add a new tag (create first an account if necessary).
Step 2. Add your Google Tag Manager ID to your William channel to press Save.
Step 3. Follow the instructions provided by the product you want to install. Here are some examples: