Write up a list of 10 advertising companies in the Bay Area smaller than Google, figure out who inside needs to say "Yes" for her to get hired, then get a warm intro to that person. Possible avenues would be convincing any of the 432 startups in that space to take a coffee date with you, then asking for an intro after demonstrating credibility. Given that most of them have nothing but time that shouldn't be a terrible imposition. An offer of Real World Experience Selling This should strike most as attractive.

Sending resumes into the firewall may bear superficial resemblance to productive work but does not make forward progress enough to justify doing it. If that's the best idea for a day, that day goes into the No Work Done On Job Search column. That is OK, but you don't want to accumulate lots of them.