The Open Aid site has got four entries: Official Develoment Aid (ODA), Organisations, Sectors and Countries and regions.
Furthermore it is possible to choose projects from the front page.
In the menu About you can find more information about the site.
Please, insert search word in the white field.
IATI - International Aid Transparency Initiative Development tracker- DFID, UK openaid.se - SIDA, Swedenopenaid.nl - The Dutch Ministry of Foreign Affairs
http://d-portal.org/ - Development Portal
http://stats.oecd.org/ - OECD-DAC statistics