HIV / AIDS Information
The Centers for Disease Control and Prevention (CDC) has a series of fact sheets providing basic information on HIV/AIDS and its transmission.
http://www.cdc.gov/hiv/topics/basic/index.htm

HIV and AIDS: Are You At Risk?
The CDC has an online brochure available in English and Spanish providing basic information that everyone should know on HIV/AIDS and its transmission.
http://www.cdc.gov/hiv/pubs/brochure/atrisk.htm

Statistics and Trends
The CDC has numerous fact sheets available with information on national HIV/AIDS statistics and trends.
http://www.cdc.gov/hiv/resources/factsheets/index.htm

The Henry J. Kaiser Family Foundation has an assortment of statistics, trend data and other information on their primary website, as well as HIV/AIDS data broken down by state on 
http://www.statehealthfacts.org/

Click Here for
Testing Services is a listing of local agencies/organizations that provide HIV/AIDS testing