For Media Artists:

Creative Capital Foundation
The foundation seeks funding requests for artist projects in either media, performing, visual arts, or in emerging fields that would include all forms of digital work. Disciplines are funded in alternate grant cycles.
Email: info@creative-capital.org
http://www.creative-capital.org/

Harvestworks Digital Media Arts Center
A non-for-profit organization founded in 1977 to cultivate artistic talent using electronic technologies. Harvestworks’ programs provide the artist with production studios, grant opportunities, education, communal lab practice and distribution.
Email: info@harvestworks.org
http://www.harvestworks.org/

Ford Foundation
The Media, and Arts and Culture unit seeks to strengthen the arts and media as important contributors to the communities and societies in which they function.
Email: office-communications@fordfound.org or office-secretary@fordfound.org
http://www.fordfound.org/program/media.cfm

The Foundation Center
The Foundation Center is an independent national service organization established by foundations in 1956. Their mission is to support and improve institutional philanthropy by maintaining a comprehensive and up-to-date database on foundations and corporate giving, and numerous other services.
Email: library@fdncenter.org
http://www.fdncenter.org/

Charles A. Lindbergh Fund
Awards up to a total of $10,580 per year to individuals whose individual initiative and work in a wide spectrum of disciplines furthers the Lindberghs' vision of a balance between the advance of technology and the preservation of the  natural/human environment.
Email: info@lindberghfoundation.org
http: www.lindberghfoundation.org