Bay Area businesses prepared for the Games for months, from building apps and websites to providing 24-hour online coverage and commentary to holding their own intra-office games. Twitter employees in Boulder, Colo., and San Francisco are busy gathering the best Olympics-related tweets at twitter.com/#olympics. Yahoo's coverage is based out of Santa Monica, Calif., but the Sunnyvale, Calif.-based company has 30 credentialed journalists working in London. Yahoo's Fourth-Place Medal blog is worth following for offbeat stories.

According to the San Jose Mercury News, Pinterest will be moving from Palo Alto to San Francisco. While not a huge move in terms of distance, the Pinterest team is excited about the change. "We're pleased to now call one of the world's great cities home," saind Pinterest CEO Ben Silbermann in a news release.

Ad Age is impressed by how many brands are involved in the 10-minute video of a car racing through an empty San Francisco. Among the brands Ad Age says Block's video includes? The city of San Francisco itself.

According to the Los Angeles Times, Facebook's U.S. advertising growth has slowed to a third of what it was in 2011. As a result, Facebook has seen their market share of display advertising drop from 14 percent to 12 percent.

Goodby Silverstein & Partners was last week selected as the advertising agency of record for Cisco Systems Inc.