I just found this neat website that allows you to benefit your favorite charity when you search online: http://www.goodsearch.com/
All you have to do is type the name of your favorite charity in the search box, in this case Oxfam, select the one you want from the list, and then search! Each search gives about a penny to your cause. Please make sure to use this search engine whenever you do an internet search.
Be sure to tell your friends about this too!