What places to visit in San Fran as a techie/nerd?

[comatory]

I'll be visiting SF for first time in about two weeks. I'm curious what are some cool places to visit? I'll definitely go to Computer Museum but it would be nice to hit two more places or so. I'm with my fiancee & her parents and we'll be there for three nights. We'll do the usual sightseeing too, I just wanted to see some nice places for technical person. Thanks!

[phodo]

Disney museum in presidio, by the golden gate. Really worth it. As a bonus: Statue of Yoda a short walk/drive away at Lucas Arts, also in the presidio. Peek into the offices for some star wars memorabilia. Companies - if you're into that: uber / twitter/ square ... all next to each other on Market St. Further into SOMA, around 4th and king, you can find many other startups. South Park: little park area off 3rd street... where Twitter was 'founded'. Random: Mrs. Doubtfire (Robin Williams movie) house in pacific height. Cafe Jaqueline - in north beach - a favorite restaurant of Steve Jobs. I think it was mentioned in the Isaacson book.