Prospector also provides a faster and more convenient mechanism for interlibrary loans
from member libraries, which can be ordered by patrons directly from the catalog.
CARL started as a character-based access system to resources, in particular catalogs of participating libraries as they were being computerized, available via dialup
long before the advent of World Wide Web
. The CARL system eventually included a subset of Dialog
. The flagship CARL product was UnCover
, an article index database. UnCover provides free article search and access to the article text for a fee. CARL was spun off in 1988
into a for-profit company, later owned by Knight-Ridder
and then Dialog
before becoming briefly Uncover, Inc. In 2000, UnCover has been acquired by Ingenta
and is now accessible as a part of Ingentaconnect.