i don't know any names, but charities that work with women's and childrens refuges. I know the giving tree was getting presents from people in our town for local refuges, found a link
http://www.mytwofrontteeth.org/?c=1002

i personally love http://www.toyboxcharity.org.uk/ who work with street kids.

but i agree, some money towards the elderly who're on their own at this time of year is also an important idea.