Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people they meet.

San Francisco - User Reviews and Recommendations of Top Restaurants, Shopping, Nightlife, Entertainment, Services and More at Yelp

The Joint Learning Initiative on Children and HIV/AIDS (JLICA) engages practitioners, policymakers, and scholars in collaborative problem-solving, research, and analysis to address the needs of children living in the context of HIV/AIDS. Its goal is to protect and fulfill the rights of children affected by HIV/AIDS by mobilizing the scientific evidence base and producing actionable recommendations for policy and practice.

Through its publications, Web sites, and data services, UBM Global Trade is the leading supplier of business information for people involved in transporting goods and commodities in the United States and internationally. Its publications and online services include The Journal of Commerce, The Journal of Commerce Online, PIERS Global Intelligence Solutions, Directory of U.S. Exporters/Importers, Official Export Guide, U.S. Custom House Guide, and Transportation Telephone Tickler.

The Columbia Population Research Center (CPRC) is a multidisciplinary community of scholars unified by a commitment to research addressing the health and wellbeing of vulnerable populations.