While the list above covers most needs, we have included some other modules and uses you may not have thought of.

Content Management
This type of module adds work flow and approval processes to standard article submissions.

CSS Stylesheet Management
If you know your way around CSS and want that extra control over the look of your site.

Document Management
Allow visitors to upload documents, manage versions, allow access to view or download documents based on security roles.

eCommerce
Starting from simple forms to Paypal integrated payments, all the way to real-time payment processing in a full featured catalog / shopping cart with all the bells and whistles.

Games
Allow your visitors to take out the latest alien invaders or solve the newest puzzle game.

Graphics / Images
These modules allow you to display images in a variety of interesting ways usually involving a Adobe Flash presentation layer.  Make an impression on your site visitors with image galleries that capture their attention. 

Help Desk / Customer Relationship Management
Allow your customers to create a trouble ticket and you can manage the process electronicly.

Marketing
Every site benefits from marketing, starting at simple analytics and visitor tracking to fancy eye catching page peel effects.

Mapping
Add Google maps to your site or store locator. 

Video
Upload video, convert it to Flash and display your masterpiece to the world.

Add Much More.... 
Calculators, Digital Coupons, Local Weather, Guestbooks, Blogs, Forums, Surveys, Polls, Contests, Instant Messaging, Display your site for mobile devices, PDA, Cell phones etc, SMS Text Messaging, Job Boards, Tag Clouds, Tell A Friend, Multi Language options for displaying content to the global community.