The San Francisco Bicycle Coalition (SFBC) is a California 501(c)(4) nonprofit public-benefit corporation established to "transform San Francisco's streets and neighborhoods into more livable and safe places by promoting the bicycle for everyday transportation." Founded in 1971, dormant through much of the 1980s, and re-founded in 1990, the SFBC in 2011 has a dues-paying membership of over 12,000 and is considered to be one of the most influential membership-based advocacy organizations in San Francisco. From Wikipedia
