Above is an overlay of every (CrunchBase listed) startup in San Francisco. In an afternoon hack, me, @alan and @thetylerhayes scrapped the crunchbase API then mashed it into Google Maps to get an interesting view of the city. I am always amazed at the amount of startup culture in this city (hence I moved here), but never had a chance to really see it from this perspective. My office and apartment are somewhere buried underneath one of those pins. I’ll try to put up a more interactive version of this chart sooner than later.
Ian Chan's Blog 
Is there an interactive map for this?
[…] and designers are in San Francisco. That’s ground zero (see the map of SF startups from Ian Chan’s blog for more proof…and its only getting more and more crowded). Even more so than Palo Alto and […]