The 4th annual Southern California Linux Expo has released its call for papers. SCALE 4x scheduled for February 11-12, 2006 at the Westin Hotel near the Los Angeles International Airport. We invite you to share your work on Linux and Open Source projects with the rest of the community. Topics of interest include, but are not limited to: Linux kernel, Linux Networking, Linux for embedded systems, Security, VoIP, Administration techniques, Open Source Deployments and experiences: Case studies, *BSD, and any other topics related to Linux, open-source, and other free software. The call for papers will be open through November 20, 2005. SCALE is a community run open-source software conference, which includes seminars, BOF sessions, an exhibit hall floor, and more. Presentations from past years are available online: 2002, 2003, 2005.