There is a large amount of online Swine Flu information being updated constantly.
General information is available on MedlinePlus, at http://www.nlm.nih.gov/medlineplus/swineflu.html. The topic will be live on the Spanish page by the end of the day.
CDC information resources that are frequently updated with Swine Flu outbreak and mitigation developments:
http://www.cdc.gov/swineflu/ This site is kept updated with recent facts and status on Swine Flu. There is a link on the page to the facts and figures about the current investigation.
A transcript of the April 24 press briefing about the Swine Flu situation is located at: http://www.cdc.gov/media/transcripts/2009/t090424.htm?s_cid=tw_epr_53
Latest CDC Health Advisory: http://www.cdc.gov/swineflu/pdf/HAN_042509.pdf
Update 5/1/09: CDC Health Advisory translated into Arabic, Burmese, Kirundi, Somali, Spanish and Vietnamese: http://www.rhin.org/document_properties.aspx?id=6256
World Health Organization (WHO) information updates: http://www.who.int/csr/disease/swineflu/en/index.html
From NYC Health Dept: steps required to confirm suspected cases of swine flu: http://www.nyc.gov/html/doh/html/pr2009/pr015-09.shtml
American Public Health Association (APHA) has a preparedness site, featuring fact sheets and more on pandemic flu: http://www.getreadyforflu.org/preparedness/influenza_main.htm
A map of suspected and confirmed cases, via Google Maps: http://twurl.nl/3d5vbf
Interested in keeping up via Twitter? CDC has a Twitter feed that contains updates on the Swine Flu: http://twitter.com/cdcemergency
You can also add the following RSS feed on Swine Flu to your feed reader to get regular updates from CDC: http://www.cdc.gov/swineflu/rss/?s_cid=tw_epr_54
Update 5/4/09: New UW-Madison Libraries Research Guide: Swine Flu/H1N1 Novel Influenza
You can contact Erika Sevetson for more information.