A study was recently conducted (March) that spelled out the fears and pain points of small businesses. Tops on the fear factor is 'not marketing effectively'. Clocking in at 38%. The other two in the top three fears is , 'never being able to retire (33%) followed by 'staying abreast of new technology (20%).
A good short article on the findings can be found at Business Know-How.
As the article states, the study was done to assist vendors in communicating effectively with small business.