This is a list of some of my favorite resources.
Classy.org
Granthub
Grantstation
IEG
Network for Good
Selfish Giving Newsletter
SponsorPitch.com
Board Source
Bridgespan
Candid
Charity Lawyer Blog
Chronicle of Philanthropy
Council on Foundations
Idealist.org
National Council of Nonprofits
The Nonprofit Times
National Network of Fiscal Sponsors
Nonprofit Quarterly
Philanthropy News Digest
Standard Social Innovation Review
Tax-Exempt Search