Times Topics is a feature of The New York Times that serves as a type of reference source for people, companies, and a myriad other newsworthy items. Examples of entities included are Jennifer Granholm, St. Jude Medical, Inc., Boy Scouts, and Marshall University.
Entries sometimes give brief synopses of the significance of the topic, and, when available, give an archive of NYT articles. Thus, Times Topics doesn't give you a cross-section of sources, but the various articles over the years tend to look at the topic from a good variety of angles, and satisfies a need to ascertain the significance of a particular topic.
Not all entries are as detailed as this one on Barack Obama.