Rating the Rater: How Accurate Is Charity Navigator?

The Illinois Holocaust Museum and Education Center in Skokie, Ill., is on firm financial footing. Its supporters include some of the city's most philanthropically minded people. Private donors fund almost all of its $10 million annual budget, and it has nearly completed a $30 million capital campaign launched in 2015.

What it doesn't have: top marks from Charity Navigator, the popular nonprofit-rating website. It gives the museum just two stars (“room for improvement”), and that has experts and nonprofit executives wondering whether the ratings are fair, and whether they even matter to deep-pocketed, high-profile donors.