The incredible 16-year-old blogger sends her first tweet backstage at the Social Good Summit.
Pete takes a photo with Malala Yousafzai backstage. He calls her "a true inspiration to the world; words cannot describe."
Pete Cashmore and Ian Somerhalder take a selfie backstage after their panel on the future of news.
Nnenna Nwakanwa speaks about empowering youth.
Toyin Ojora-Saraki speaks on a panel with other women about how mothers can join together to make the world healthier.
Ernesto Arguello introduced Snap2Live, an organization focused on road safety awareness.
These two founders talk to the Social Good Summit audience about providing glasses to the less fortunate around the world.
Pete Cashmore takes a photo with Jan Eliasson before he takes the stage.
Jan Eliasson and Kathy Calvin pose for a picture backstage at the Social Good Summit.
Sir Richard Branson shakes hands with a photographer before going onstage to speak about the business model of the future.
Ethel Romm, mother of Joseph Romm, the Founding Editor of ClimateProgress.org, speaks with young Polar explorer Parker Liautaud before he goes on stage.
Ethel Romm has a heartfelt conversation with 19-year-old Polar Explorer Parker Liautaud before his panel begins.
Barbara Bush takes a photo after her panel at the Social Good Summit.
Pete Cashmore and Stacy Martinet take a selfie with Al Gore before he delivers a passionate address about climate change.
The audience waves back at Mashable CEO Pete Cashmore, who is on stage to moderate a panel.
Ketchum Europe CEO David Gallagher, Associative Creative Director of McKinney Jenny Nicholson, and President and CEO of The Advertising Council Peggy Conlon discuss how to create bold and effective social issue campaigns.
Pete Cashmore takes a photo with Linkin Park bassist Dave ‘Phoenix’ Farrell, drummer Rob Bourdon, energy policy specialist Bahareh Seyedi and CEO of Kuuluu Interactive Entertainment AG Florian Juergs.
Sarah Kramer and Andre Banks wait in the green room before going on stage to talk about the politics of coming out in the digital age.
Melinda Gates speaks at the Social Good Summit.
Two of the seven language translation booths at the Social Good Summit.
Pete Cashmore and Will.i.am take a photo together backstage at the Social Good Summit.
Neil Blumenthal poses in the green room before he takes the stage to discuss providing glasses for people around the world.
Samantha Power discusses the crackdown on civil society by governments around the world.
Pete Cashmore takes a photo backstage with two teenage revolutionaries: Parker Liautaud, a 19-year-old polar explorer and Jack Andraka, who at 15 invented a breakthrough test for pancreatic cancer.
Comedian Hassan Minhaj wraps up the Social Good Summit.
The speakers at the 2013 Social Good Summit shared different perspectives on the power of innovative thinking and the use of technology to make the world a better place. These inspiring Instagram pictures offer a behind-the-scenes look at some of the leaders who are working to improve the lives of men, women and children around the world.
Highlights from the three days of the summit included a panel with Ian Somerhalder, who discussed his social news startup, a heartwarming conversation about girls' education with Malala Yousafzai and an eye-opening session on climate change by former Vice President Al Gore.
See also: Twitter's Best Ideas for #2030NOW
Other key speakers included U.S. Ambassador to the United Nations Samantha Power, Grammy-winning musician Will.i.am, founder of Virgin Galactic Sir Richard Branson, director J.J. Abrams and teenage revolutionaries Jack Andraka and Parker Liautaud.
In case you missed any of the panels, we rounded up some of the most inspirational Instagram photos taken at the Social Good Summit. Many of these images were captured by the five photographers from #Instacorps, who shared amazing behind-the-scenes images from the event.
Who were your favorite speakers at the Social Good Summit? Let us know in the comments below.
Homepage image: Mashable, Casey Kelbaugh