Stacks is a plugin for RapidWeaver made by YourHead, an awesome developer of addons (YourHead is not affiliated with 1LD). The Stacks plugin lets you build web pages in an easy drag and drop manner. We believe it is a must have plugin if you are a RapidWeaver user as it adds loads of functionality to the website creation process, especially through the use of 3rd-party addons like the ones you can find on our website. Each of these addons is simply referred to as a "stack" or "RapidWeaver stack". These stacks require the Stacks plugin to function.
Find out more about the Stacks plugin here.