Founded in 1997, the Center for Distributed Learning (CDL) at the California State University aims at disseminating best practices for e-learning among educational communities by identifying learning related problems and applying technology to support good teaching. In this respect, it offers various demonstration projects and interesting multimedia tools to help people with little experience in planning and developing learning objects. The website is organized in three sections concerning the professional development, the digital content and the e-learning framework. In each section, projects’ related materials, and software demos can be easily browsed for free while software applications are available only to the CDL’s community and partners. Links to other external resources and related webpages are available as well. The website also include Merlot, a free and open webresource designed for faculty and students of higher education, that offers links to online learning materials. Particular emphasys is given to the e-portfolio concept as the mailstone of the teaching commons. Participation is free but registration is required. The CDL has been recognized for its contributions to education by such organizations as the New Media Consortium.