The design experts over at Duarte have released for sale a series of diagram elements, for use in creating presentations, reports, etc. The elements are well organized, letting you filter them by the type of relationship you are trying to visualize, number of nodes, and style. I have mixed feelings about these sorts of collections (Powerframeworks is another) as they are very similar to what is available for free in Powerpoint’s SmartArt graphics. And yet, whenever I browse through them, I always find something I haven’t seen before, or get inspired to mash a few designs together in a new way. If you have strong illustrator or photoshop skills, these probably won’t be of much interest to you. But if you don’t, and just need a quick diagram to drop into powerpoint with no fuss – these are a lifesaver.