San Francisco and LA in March 2006

I (Peter Cooper, founder of FeedDigest) will be in Los Angeles (and maybe San Francisco) in March 2006. I'm particularly interested in meeting anyone involved in the RSS and Web applications scene. We haven't decided whether to go to San Francisco or not yet, so if anyone wants to give me a reason to go.. :)

I've been to LA several times, but never San Francisco (or Silicon Valley) and I'd love to get a feel for the whole Silicon Valley thing. Any tips, advice, or places to go are welcomed.