Creating Web-Based Presentations for your nonprofit

Anyone have any cool stories about nonprofits using slideshare?
I’m going to be giving a talk for netsquared on Creating Web-Based Presentations for your NonProfit. It should be fun (I’ll be sharing the mic with Cindy Li of Scraplog).
I’ve got a few stories and experiences to share, but I’d love to add to the list. Send me an email (jon AT slideshare DOT net) or just reply here.
p.s. The talk is on June 12, at the super-terrific citizenspace in San Francisco.