Helpful Links
http://www.flu.gov/
Flu.gov is a very user friendly websites that answers questions, has videos and is dedicated to solely the 2011-2012 Flu Season.
http://www.cdc.gov/flu
The Centers for Disease Control is a website that gives a very good in depth explanation of the seasonal influenza virus and some, to include overview, tracking and sections for health care professionals.
Able to provide you will information on not only the Seasonal Flu Vaccine, but also all other vaccines needed throughout life. The website is very user friendly.