from the news page:
SONIC YOUTH USA SHOWS 2006 - SOCAL DATES ADDED
The Sonic Youth Summer Tour kicked off at CBGB's June 13 and will continue through Sept. 3 in Boston at the Avalon. Two Southern California dates have just been added at the end of September: San Diego on the 27th and LA on the 28th. Ticket info for these two soon. Some of the August shows will feature The Flaming Lips + SY together on the same bill. The bands will do a 6-date run from St. Paul to Syracuse in late August. Complete dates are listed below left, and ticket information is available on the
Calendar page.