The document discusses several approaches to using information technology to improve public health: - The European Union provides a public health portal with information on EU initiatives and programs to positively influence behaviors. - Brazil connects family health groups to reference centers via telehealth to improve primary care. - The Pan American Health Organization operates a virtual campus for public health education across nodes in several countries. - The World Health Organization uses GIS to map and analyze disease information. - Supercourse provides open access to over 2000 expert lectures on public health for education worldwide.