I have been updating my own page of web resources on this subject, at http://www.le.ac.uk/li/khn5/birdflu.html. After one of my email mailshots for my own pages, my attention was drawn to a blog, called Avian flu - what we need to know. It reviews the news, can be searched by category, and has links to other resources. I am not quite clear who is maintaining it, but you can see it at http://avianflu.typepad.com/
Some other things:The Times of the 12th January reports a study by Maplecroft, a risk consultancy, using WHO data, that Britain is at greatest risk from an outbreak of the H5N1 strain of the virus. The report includes an interactive map.Nature, on 12th January, looks at the debate around whether the H5N1 virus will jump to humans.
Archives of Internal Medicine published a study recently that argued that the virus is being transmitted to humans more frequently that originally thought, but not causing any severe symptoms. This is discussed in a Science and Development Network news article. The abstract of the study is at http://archinte.ama-assn.org/cgi/content/abstract/166/1/119 and I have the University's password for full text access.