In an earlier post, I asked what percentage of the LivingSocial-inspired surge of new Capital Bikeshare members are female. The number matters because the relatively small number of women willing to bicycle remains one of the biggest obstacles cycling faces to becoming a mainstream form of transportation in the United States. I got an answer just a few days later from Katie Sihler, the member of the Capital Bikeshare marketing staff who orchestrated the LivingSocial deal. Women bought 49% of the new memberships, Sihler told me. Not too shabby.