Here is a maintained, up-to-date repository of useful (and not so useful) Revit families for your projects.
If you would like to add to this growing list as a contributor, please fork and/or join this repo as a contributor.
How to get started
Easiest
- Click on the zipball link above^ to get a current set of rfa families.
Better
- Fork the repository in your GitHub account.
- Download and install GitHub for Windows (http://windows.github.com/)
- Using the GitHub for Windows client, clone the repo to your computer
- Add families of your own to the master branch!