Websites such as GreatNonprofits.org, TopNonprofits.com, GuideStar.org and Forbes.com all contain lists of charities and nonprofit organizations, as of 2015. Each list offers information about each entity, including a summary of its activities, as well as links to each group's website and social media accounts.
GreatNonprofits.org includes an annual list of the highest-rated nonprofits and charities according to feedback and reviews from its users. Each entity includes a star ranking and written review form the user, along with the user's link to the organization, such as a volunteer or a client. The site also contains filtering tools to narrow listings according to the activity of the organization.
TopNonprofits.com offers a ranked list of nonprofits that takes into account the Alexa and Google page rank for its official website, social media following and other factors. Every entry also offers the sector in which the nonprofit operates and a link to its website.
Guidestar.org offers a series of lists, each of which focuses on nonprofits within different sectors, such as religion, education research or the environment. Every major category also has several subcategories, under which each organization appears. Listings for individual organizations include the contact details for its main branch, as well as details about its annual revenue, links to its official documentation and the different people governing the entity.
Forbes.com contains a list of the largest charitable nonprofits within the United States, according to organization size and revenue.