In The Season Of Givinga discussion on giving by Peter Singer and William Easterly on Bloggingheads.tv via Christmas Charity Gift-Giving Video Edition: Peter Singer and I on Bloggingheads.tv. Questions like too much establishment costs of some organizations, keeping track of whether the money is spent for the causes given and the results are discussed and there are links to some reliable efforts (but what is reliable now may not be reliable tomorrow)and links to organizations which evaluate charities.
My own small efforts are through organizations in places I know where I can get feedback through friends and relatives and can visit once in a while. Two such I know which work mostly in Andhra Pradsh are:
http://www.hopeforhumanitymd.org/, the first organized by Benjamin Kaila and friends and the second by Mrs Krishnarao and friends. Mrs. Krishnarao lives in Maryland and wants to start a blog to attract more people to their efforts and inform of the ongoing efforts. If any dody can help please contact her.