Gliffy is a web-based application for creating diagrams. There are a variety of graphics and templates available such as Venn diagrams, flowcharts, floor plans and different shapes to help you get started. Here are some examples of Gliffy diagrams:
On the site, there is an option for a free or premium membership. With the free membership, you can create and share up to five public diagrams. After you finish a diagram, you can easily export it as a JPEG or PNG image or even just print it. Gliffy is also a great tool for creating graphics for a presentation. For more information, visit Gliffy’s Webpage.