CNET News.com reports: "Google announced the launch on Monday night of its long-awaited, Web-based competitor to PowerPoint. Google Presentations, which is free, is part of the company's online office suite, Google Docs."
Presentations has some similar but limited functionality when compared to Microsoft's PowerPoint to create basic presentations. Although it lacks more sophisticated features that people have come to expect from a program like this.
If you need to create a simple presentation and want to post it on the web this might be a great way to go for you.