NYFA
https://www.nyfa.org/
Established in 1971 by the New York State Council on the Arts as an independent organization to serve individual artists throughout the state, the mission of New York Foundation for the Arts (NYFA) is to empower emerging artists and arts organizations across all disciplines at critical stages in their creative lives and professional/organizational development.

http://www.artbusiness.com/
ArtBusiness.com provides complete art consulting and advisory services, art appraisals, art price data, articles for artists and collectors, and market research and information to anyone involved with art.