For starters, rather than uploading the presentation to your website as a PDF, upload it instead to SlideShare.net and embed the SlideShare presentation into your website. Then use Twitter and an email blast to your distribution list to let people know that your presentation is available on SlideShare and your website.
SlideShare is the world’s largest online presentation-sharing site with over 55 million visitors and 120 million presentation views per month. Uploading presentations to SlideShare is quick, costs little or nothing, and allows presentations to easily be shared or embedded almost anywhere online. The popular presentation sharing service, is becoming an increasingly important way for investor relations departments to publish their investor presentations, fact sheets, annual and CSR reports, and corporate videos.
Add a synchronized audio recording
Augment your online presentation further by making an MP3 audio recording when you deliver the presentation. Then, upload the MP3 file to SlideShare, link it to your presentation, synchronize the audio with your slides and viola, you have a slidecast!