I’ve written several times in the past about SlideShare’s presentation contests, usually expressing mild disappointment that winning entries were not more story-rich, not even in the site’s Tell A Story contest.

SlideShare opened up its 2010 World’s Best Presentation Contest Oct. 7 (submission deadline is Nov. 8) and announced the contest’s six categories: Business, Education, Technology, Creative/Offbeat, NonProfit/Gov, and About Me.

While entrants could conceivably tell stories in their presentations in any of these categories, I’m thinking “About Me” will especially lend itself to storytelling.

In addition, the site is holding a Presentation Horror Story Contest: “We’ve all sat through a terrible presentation or two,” the site states, “but this October, we’re looking for the a true presentation horror story. The worse it is, the more we want to hear about it. Enter your horror story to win a 3M™ PocketProjector MP180 with Wi-Fi and Bluetooth technology. This powerhouse projector stores video, music and data and can access the internet as well as other devices.”