South by Southwest (SXSW) is an annual set of film, interactive media, and music festivals and conferences that take place in mid-March in Austin, Texas, United States. It began in 1987, and has continued to grow in both scope and size every year. In 2011, the conference lasted for 10 days with SXSW Interactive lasting for 5 days, Music for 6 days, and Film running concurrently for 9 days.
South by Southwest is run by the company SXSW, Inc. which plans and executes conferences, trade shows, festivals, and other events. In addition to the three main South by Southwest festivals, the company runs three other conferences, two in Austin: SXSWedu, a conference on educational innovation, and SXSW Eco, an environmental conference; and one in Las Vegas: SXSW V2V, a conference focused on innovative startups.