The Facebook group dedicated to the Wielinski family is also keeping abreast of the Buffalo crash, updating the site with news and commentary. Those who have joined say they were touched by the tragedy.
"I live right across the border in Niagara Falls, Canada, and when I heard of this plane crash, my heart dropped and my body filled with sadness for the families who lost loved ones on the plane," wrote Sharlene Wedlake. "What a horrific event to happen, and for the family who lost a home. It's just mind-boggling."
This week it was revealed that pilot error may have caused the plane to veer off course and crash into the Clarence Center home, about 6 miles outside Buffalo. The airliner was en route from Newark, N.J., to Buffalo Niagara International Airport when it went down about 10:20 p.m.
All 49 onboard were killed, as well as Wielinski's husband, a marketing manager at Luvata Buffalo and a Vietnam War veteran. Karen Wielinski was watching television when she heard a plane making an unusually loud noise. Her husband had just left the family room to work in the dining room.
"I thought to myself, if that's a plane, it's going to hit something," she told Buffalo radio station WBEN. "When the ceiling first fell down ... I think the first thing I said to myself was 'Is this real? Is this reality or am I dreaming something?'"
"And next thing I knew, the ceiling was on me," said Wielinski, who was trapped in the house. Firefighters blamed a natural gas leak for the blaze's persistence. Miraculously, she and her daughter escaped, running up the street to look for neighbors.
The O'Connor sisters, who both attend Buffalo Academy of Sacred Heart, said that group members have offered to do more than just sign a petition to have "Extreme Makeover" consider helping the family.
"I think the biggest thing that is really touching is that people have been saying that even if the Wielinskis don't get on the show, they are donating services, a construction site or landscaping to build a house for them," Emma O'Connor said.
Erica Perry, a 24-year-old from Rochester, N.Y., who joined the group, believes social networking "makes people more philanthropic."
"They see their friends join groups and get interested," she told ABCNews.com. "I learn about events and stories that aren't always on the news in my area but are important to out-of-town friends and family."
Perry, who is a graduate student in packaging engineering, is also a member of the Soldiers Angels, a Virginia Tech memorial group, as well as other groups that support cancer research and a police officer who had been shot.
"It seems they are pretty effective, based on just the numbers of people who join and show support in their own ways," she said. "A few causes even have options to donate money, which I haven't done yet, but friends have."
But another member of the group, Jason J. Deuro of Buffalo, worried about exploitation.
The 35-year-old customer service manager joined when five friends sent him a link.
He signed the petition so he could "read the group's reasonings" and air his own opinion.
"It would make me sick to see someone on TV present this family with a new Kenmore oven or stove and see the sales from those products increase at the expense of a family in my community," he told ABCNews.com.