I've been doing some concept diagramming for work lately, and I've found myself enjoying it immensely. I'm really having fun with the design aspects of the diagrams and enjoying the way that little touches (type size, color highlights, icons) can enhance the readability of the resulting document. However, since it's for work (and a set of products that may not see light for 12-18 months) I can't share much of it. I did post some sanitized versions, with all the object-names obsfucated, but that just didn't seem wholly satisfying.)
So over the weekend I invested some time in a diagram that I can share with the internets: a simple Flickr user model (regrettably incomplete -- but I realized that if I tried to include the whole Flickr-verse that this diagram would go beyond labor of love and straight into excercise in folly.) Click on the image above to get to larger versions + comments.
Or download the diagram as a high-res PDF file (374Kb)