An introduction from the project's wiki: Teaching Open Source "is a neutral collaboration point for professors, institutions, communities, and companies to come together and make the teaching of Open Source a global success." It is legitimate to note that Red Hat, Inc. has been the primary source of project support, thus far. This does not preclude others participating.
They offer a wiki page for FOSS projects that will mentor new participants in the community, http://teachingopensource.org/index.php/FOSS_Mentor_Projects
"Beyond the scope of the Google Summer of Code program, there are many Free and Open Source Software projects who would welcome the opportunity to mentor students interested in working on their projects. These projects may also be willing to mentor local professors who are interested in teaching FOSS in their classrooms. This page contains a list of FOSS projects who would like to mentor students and educators, along with resources for learning more about each project. There is additional information for those who would like to get involved in the overall project and help connect students and educators to FOSS projects."
In my opinion, this is a stepping stone for those who wish to be remunerated for their efforts. It solves the old problem of how you show experience that warrants your involvement in a project and the project's need to have inexpensive, but committed, labor to improve the product.
If I remember correctly, Inkscape project members have served as Google Summer of Code mentors in the past. The above referenced page is a resource that is available all year long for any project or participant.
Personal note: Teaching Open Source is my current point of concentration so I may become an adequate participant in other Free/Libre Open Source Software projects.