NNDB

The Notable Names Database (NNDB) is an online database of biographical details of over 40,000 people of note. NNDB describes itself as an "intelligence aggregator" of those it determines to be noteworthy, but mainly to identify connections between people.

Entries
Each person has an executive summary giving a brief description of NNDB's opinion of his/her notability. All have summaries of their vital statistics, such as full name, pseudonyms, birth and death, location of their remains, religious beliefs, gender, race or ethnicity, sexual orientation, family members, relationships, and nationality. Contentious facts are footnoted. Some entries have a brief prose biography, or contain facts or citations of note. Entries may contain summaries of the organizations they belong to, illnesses, phobias, addictions, drug use, criminal records, and other data. In the case of authors, actors, film directors, and architects, the entry lists the person's artistic works in chronological order. Businesspeople and government officials have chronologies of their official posts and positions, as well as board memberships. NNDB also has articles on films with user-submitted reviews, discographies of selected music groups, and extensive bibliographies on most subjects. Readers may suggest corrections through a form on the website; these are later vetted by an NNDB staff member. A former feature was the "Level of Fame" assigned by NNDB from "Niche" to "Icon".

NNDB Mapper
The NNDB Mapper, a visual tool for exploring connections between people, was made available in May 2008. It requires Flash 7. The interface allows the user to map how various individuals and institutions are connected, and save and share these maps.