Remember the unreadable Goodmail email with the blocked images that was an invitation to a webinar about, er, avoiding blocked images? If the poorly formed invitation didn’t scare you off, the presentation is available at:
http://www.goodmailsystems.com/docs/goodmail.pdf
and an
http://www.goodmailsystems.com/about/news_events_press/audio/

Those don’t look like particularly permanent URLs, do they? I’m hesitant to link there, wondering if I’ll have broken or off-topic links down the road. Don’t make that naming mistake when posting presentations to your site. Pick a name and directory structure that’s easy to remember, provides some context and looks like it won’t suffer from linkrot. Something like /presentations/goodmail-date/ or /avoiding-blocked-images.pdf would work better. And what’s /about/news_events_press/audio/ all about — is this for users, customers, the press?