CathysSis (http://whatnext.com/users/cathyssis)had mentioned in a different post that she used GoFundme to help her sister. This is what she had said:
I started a donation website to help my sister with fee's outside her insurance.
The $4,000 goal was for food, child care (for her daughter) airfare, to stay with us for a month to care for her and help her learn better nutrition as well as alternative therapy. (Now that we have researched alternative therapies, Gerson, SD Cancer Center, Reno facility, the $ goal was a HUGE underestimate. Sis is still coming to stay but now we don't know what to do.)
There are other sites to help get the word out for donations, I checked out 4, but this one only takes 5% of each donation (unfortunately), which was the best for what I was looking for. Also be aware that Paypal takes a %. To date, with the two, Paypal and GoFundMe, I have paid $500 from the donations received to them so far. It seems like a lot but the site looks professional, connects you to Facebook and Twitter, and without those I wouldn't have gotten as close to our goal as we have.
I am sure she would be happy to answer any questions if you reached out to her. Hope this helps!