Slowly, large publicly traded companies are starting to experiment with Internet and social media as alternatives to the dry and boring annual report. Reuters just issued a 1-page version (see it here), with a promise that over the next few days, this will be followed up with more detailed blog posts about the company and its financial results.
Early online annual reports were a pain. They basically were print documents put online and you had to keep on clicking on “next” links to get to the following page. Rendering of tables and data in basic HTML also did not provide good results. Combine that with slow page loads and you get a pretty useless experience.

New display protocols (and certainly HTML5) will give PowerPoint-like fast navigation controls to online documents. I think a hybrid of a traditional slide presentation, advanced (and fast) web navigation, video and other multi-media, plus social aspects will give a powerful distribution platform for financial data. You get the best of both worlds: PowerPoint-style visualization of data and key strategic messes, and nicely-formated text for those who want more details. Certainly for public investor presentations such as this one, but also for confidential documents. You can distribute login details to (potential) investors you want to share your data with and exclude them from the online data room as soon as the deal process has stopped.
There are also great opportunities in sales. I rarely use a PowerPoint presentation anymore to introduce my own services for example. Rather, I just take people through a few sections of my web site, either in person or via a remote presentation tool. SalesCrunch, the company that is organizing my upcoming New York presentations, is trying to create a platform for these remote sales presentations.