I couldn't find any mention of the Palestinian Women's Working Society more recent than 1999. This is what I found from that time period:

Palestinian Women's Network

Here's the site for the Women's Affairs Technical Committee (WATC). It looks like it is current and still viable:

http://www.nonprofitnet.ca/wao/wao.php?show&967

I couldn't find any current information for the Al-Amam hotline.