choices are circled in red. The space in the rectangle shows you the current filters and settings for the map. (By default, the map shows all types of nonprofits registered with the IRS including 501(c )(3) public charities, private foundations and other nonprofits like trade associations, social or recreational clubs, and (c )(4) , which may be focused on issue advocacy or other activities. Click on the map legend to see what the different icons show.