If you do any kind of interactive design work you know the importance of visualization and prototyping tools. This set of tools covers everything from wireframes to visualization, and there are a ton of choices. Lucky for us, some people over at usertesting.com designed a huge infographic that lays out all the tools of the trade, the platforms they work on, and the platforms they develop for. They also include price comparisons which is important for everyone because ROI impacts everyone in the business of making money from design.