A reader pointed me at this campaign. Basically, the United Nations Foundation (a charitable institution established by Ted Turner to help UN causes) will contribute US$1 to the UNIFEM-managed UN Trust Fund to End Violence against Women for each of the first 100,000 signatures in their online campaign book. The trust fund funds projects around the world aimed at ending violence against women, such as campaigns for legislative change, data collection, judicial and police training, and women's networks (there's a list of their 2007 projects here [PDF]; most of it is small scale, but it makes a difference).
US$100,000 isn't a lot of money, but every bit helps. So, click today, and help in a small way to end violence against women.