The 2008 New York City Bicycle Screenline count shows a dramatic 35% increase in cyclists [PDF] over a year ago. Streetsblog reports that advocates credit facilities for the big increase in bicyclists. The bicycling modal share in New York City was 0.4% in 2004 and has nearly doubled since then to almost 1%.
On the other side of the United States, 8% of Portlanders say they commute by bike, with preliminary reports showing a 28% increase in bike commuters over the previous year.
San Francisco, which is banned from providing any new bike facilities by a court injunction, showed a 24% year-on-year increase in bicyclists during that city's last bicycle count.