Check out this company: 37 Signals
They create highly practical applications to help people build their businesses. Perhaps you can find one that suits you. Their offerings include:
- Basecamp, a project collaboration and communication tool
- Backpack, an information organzing tool
- Writeboard, a web-based word processing tool
- Ta-Da List, a shareable to do list
- Campfire, a group chat tool
This company seems to have a real strength in the field of collaborative applications, which are programs (in this case, web-based) that allow you to communicate and share content with people.
I know this is going to sound like some kind of paid promotion (which it's not): What I like about this company is that they combine great programs that are web-based and provide high value with excellent branding.
If you are looking for a great example of a business that has it together when it comes to brand creation, check them out. If you want great collaborative software, their programs are well-thought-out, nice to look at, and robust.