Content itself is the biggest obstacle keeping marketers from taking better advantage of SlideShare — that is, the obstacle of coming up with content ideas for SlideShare presentations. After all, once you decide on a concept and structure for a presentation, finishing the presentation usually moves forward quite nicely. The hard part is coming up with the initial idea. To help you get over that hurdle, here are 12 easy-to-create SlideShare ideas — enough for a year’s worth of monthly presentations. These ideas are followed by tips for putting them to work, and for leveraging your completed SlideShare presentations.