Earlier, candy maker Nestle also said it would stop advertising on Ingraham's show.
On Thursday she issued an apology.
Rather than stay mum or go silent, Hogg clapped back at Ingraham by encouraging advertisers to boycott her show.
"I would like to do that", Hogg said of appearing on The Ingraham Angle to CNN's Alisyn Camerota. "It's time to love thy neighbor, not mudsling at children", Hogg said on Twitter. "She could have apologized for ages after that awful tweet". Some of them reminded Ingraham, simply, that she was a mother.
Hogg, a student a Marjory Stoneman Douglas High School, filmed students hiding from the gunman in their classrooms.
One user posted that he was systematically removing his reviews from TripAdvisor.
Despite the rejection from the colleges, Hogg is optimistic about the work he and his classmates are doing.
"Any student should be proud of a 4.2 GPA -incl".
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Hogg, who has proven adept at leveraging the pace and amplification of social media, quickly responded with a tweet of his own, listing her major sponsors and encouraging his rapidly growing social media base to pressure them.
Ingraham mocked Hogg on Twitter for not getting into the colleges he applied to.
A day later - as advertisers joined a boycott - the Fox presenter struck a conciliatory tone by praising David's exam grades.
Ingraham has not yet responded.
"Laura Ingraham doesn't have any shame". Seven companies confirmed pulling advertising from Ingraham's show, The Ingraham Angle, on Fox, after Hogg asked his Twitter supporters to boycott the 12 companies that sponsored the show.
"We believe strongly in the values of our company, especially the one that says, 'We are better together, '" a spokesperson for Trip Advisor said in a statement to TheWrap.
It was unclear whether any of the brands would change their minds after Ingraham apologized.
CNBC cited a TripAdvisor spokesman as saying the company does not condone "inappropriate comments" by Ingraham that "cross the line of decency". It said that it will not be purchasing any more ads. "Laura Ingraham would not exist without corporations enabling her to exist on the air".
Characters like David Corn (Mother Jones), Joy Reid, and the entire Parkland student group turned to the social network to criticize Ingraham's attack.
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