Some possible funding opportunities (in no particular order)

Domestic undergraduate

Georgia Tech EAS Broadening Participation Summer REU

PURA (Georgia Tech only)

GSA Sectional Undergraduate Research Grants, ERG Program

Sigma Xi Grant-in-aid

Explorers Club

Ford Foundation Predoctoral Fellowship

AAPG L. Austin Weeks Grant

International undergraduate

DAAD (Germany)

Domestic graduate

NSF Graduate Research Fellowship Program

NASA FINESST

GSA Graduate Research Grants, GSA-ZEISS Research Grant, AGES Program

AWG, AWIS Fellowships

AEG, AAPG Grants-in-aid, SEG, SEPM

Ford Foundation Dissertation Fellowship

Explorers Club

International graduate

Fulbright Foreign Student Program (many countries, including EU)

Swedish-American Foundation (Sweden)

American Australian Association (Australia)

Domestic postdoctoral

NSF Postdoctoral Fellowship

Ford Foundation Postdoctoral Fellowship

International postdoctoral

Feoder Lynen Fellowship (Germany)

American-Scandinavian Foundation (Scandinavia)

SNF Mobility Postdoc (Switzerland)

Säätiöiden post doc -pooli (Finland)

Fulbright Visiting Scholar Program (many countries including Israel, EU, Australia, UK)

Fulbright Nehru Postdoctoral Program (India)

Banting Postdoctoral Fellowship (Canada)

American Australian Association (Australia)

Schlumberger Foundation Faculty for the Future (many countries)

(and many other programs not listed here! please contact Karl Lang with suggestions)