I don't know Nancy Schwartz, but her advice on communications for nonprofits is smart, succinct, and important. Reading her articles could be considered a crash course in nonprofit marketing communications. Take, for example, this article about a free and underused marketing opportunity, e-mail signatures. Employees can convey key messages about your mission, programs, and events through consistent signature formats and regularly updated and hyperlinked taglines.
In this age of information overwhelm, I am picky about recommending subscriptions, but I highly recommend her newsletter, Getting Attention.