Sarah Parcak is an American archaeologist and Egyptologist, who uses satellite imaging to identify archaeological sites in Egypt.

Parcak was born in Bangor, Maine, received her Bachelor's degree in Egyptology and Archaeological Studies from Yale University in 2001, and her Ph.D. from Cambridge University.

Parcak is also a TED Fellow.

Tiffany Shlain is a filmmaker, artist, founder of The Webby Awards, and co-founder of The International Academy of Digital Arts & Sciences.

A celebrated thinker and catalyst, Tiffany is known for her ability to illuminate complex ideas in culture, science, technology and life through her unique films and her dynamic talks and projects.

She has been named by Newsweek as one of the “Women Shaping the 21st Century.” Here's some of what she had to say at TEDxWomen 2011...