For housing: http://sfbay.craigslist.org/ http://sfbay.craigslist.org/ - for shared rooms and sublets. For tech companies: http://www.wayfaring.com/maps/show/4

For housing: http://sfbay.craigslist.org/ http://sfbay.craigslist.org/ - for shared rooms and sublets. For tech companies: http://www.wayfaring.com/maps/show/4358 http://www.wayfaring.com/maps/show/4358 - this is a map of many of the tech companies in the area. For activities, check out http://meetup.com http://meetup.com - there are lots of tech activities all over the area.