A major earthquake has devestated Haiti, and in particular its capital Port-au-Prince.
We recommend these charitable relief organizations, all of which have significant personnel and resources deployed in Haiti, and 4 out of 4 stars from Charity Navigator:
Doctors Without Borders (Médecins Sans Frontières) - 900 relief personnel in Haiti
Oxfam America - 200 relief personnel in Haiti
Save the Children - 200 relief personnel in Haiti
Partners in Health - 150 physicians; intact medical center in Haiti
CARE - 100 relief personnel in Haiti
UNICEF USA - 75 relief personnel in Haiti
Google News feed for Haiti Earthquake
Haiti entry from Wikipedia
A divided island: the forces working against Haiti - Jared Diamond, writing for UK Guardian
For comments or suggestions, there is a newly established earthquake forum.