Oxfam now operates in over 90 countries across the world.
Oxfam works to: create sustainable livelihoods, provide clean water, prevent conflicts, prevent/treat HIV and AIDS, spread gender equality and educate people in developing countries.
Some of their ongoing campaigns include: raising awareness of and reversing the destructive forces of climate change, making trade fair, reducing governments trading weapons.
This is an organisation worthy of your monies. Chances are you're unwilling to sign up to continuely give them your money or you just don't like canvassers harassing you.
An easy way to support Oxfam from the comfort of your home is to buy a book, movie or CD that you think you need. All the profits from your purchase goes to Oxfam NZ and the shipping is free worldwide. Good Books accepts New Zealand/Australian/American dollars, the British pound and Euros.
If you would rather help Oxfam help people in a more direct way, you can do that too. A pile of poo is only twenty bucks, planting twenty five trees is twenty five and training a village birth attendant a mere forty—all of which is tax deductible and makes the perfect gift.