America's Worst Charities
This Tampa Tribune list of the 50 worst charities in America popped up in a LinkedIn article.
More important than the list of charities with less than stellar financial records is a group of links to "Resources for checking nonprofits" on at the lower left of the Tampa Tribune list page. I know a number of folks here support charities or may be looking for organizations that support specific causes - the links should be useful for checking in to an organization or finding one that's a good match for a cause.
I'm not familar with all the resources for digging in to charities, but have used Charity Navigator before and it's pretty easy to navigate.