SrLnclt writes: AutoDesk has begun contacting owners of websites with Revit in their TLD name, and accusing them of trademark infringement. For those unfamiliar with this software package, Revit is a 3D modeling tool designed to model buildings and their MEP and Structural systems, which is currently owned by AutoDesk. It is widely used by architects and engineers for this purpose, and has supplanted AutoCAD in the building design fields for many users. One such domain revitforum.org is an independent non-profit, user to user support forum. Typically users on this site are already familiar with Revit, have purchased licenses, and are looking for help, tips, or tricks in using the software. One of AutoDesk's lawyers has contacted [PDF, Registration Required] the site owner, who has responded [PDF, Registration Required] and plans on fighting this issue. Additionally, they are currently looking for legal help from anyone with a legal background willing to donate some time.