This sort of emergency is being recognised by organisations such as Oxfam who recently developed this interactive map to show where food shortages and famine are likely or exist. http://www.oxfam.org/en/grow/food-price-volatility-map
Other bodies are using twitter, flying in bloggers, broadcasting concerts and holding online fundraising as a way of raising awareness and funds for the area – http://mashable.com/2011/07/29/africa-famine/
For more background see: http://bit.ly/o7P4mI, http://bit.ly/qJJ7mR
UPDATE: An Australian East African Appeal has been launched, promoted primarily through radio and social media platforms:
http://www.abc.net.au/eastafricaappeal/
https://twitter.com/search?q=%23EastAfrica

