The Los Angeles LAMP Special Interest Group (LAMPsig) is an off-shoot of the Linux Users of Los Angeles (LULA) group. LAMPsig is focused on web development and end user web interfaces. The LAMP environment (Linux, Apache, MySQL, PHP) is the SIG's starting point.
The concept of an open source web development and web hosting platform matters much more than the acronym chosen to represent it. The open source nature of the platform is its greatest strength. So any alternative open source components will work just as well (e.g. FreeBSD AOLServer PostgreSQL Perl).
LAMPsig hold its meetings every 3th Saturday of the Month at the Tom Bradley Center, 5213 West Pico Blvd. Los Angeles, CA 90019.