Shopping / Modules
Modules are self powered classes that will extend your site to be more powerful and add further features to it like a Photo Gallery and so on.
Newsletter
This module allows you to create newsletter lists, let people subscribe to them and send out newsletter emails. It uses a double-opt-in subscription system so it should be compatible with all hosting providers' TOS.
Member Forms
This module extends your site with user registration/my account dynamic forms allowing you to have guests register on your site. You can customize both forms with any custom fields you want.
Local Search Engine
It's a simple class that lets you have a search field/form and a keywords cloud of the most searched terms on your site and will display posts from all menu items or the ones you check in the admin when you click on the search module.
Polls
This module allows you to create polls and gather feedback from your users. Polls support comments, pictures and even attachments.
Video Gallery
This module allows you to share videos on your site in a directory/subdirectory structure. You will be able to enable Ratings and/or Comments for each gallery separately, even set a limit for videos to show/page (paginating).