A method and system for displaying interest space user communities. A
method may include detecting a request to access a given online content
source, where the request is generated on behalf of a given user, where
the given online content source is one of a number of online content
sources included within an interest space, and where the interest space
is identified dependent upon indications of user navigation activity
among the online content sources. The method may further include
displaying to the given user a representation of the interest space in
response to detecting the request, where the representation includes
respective indications of at least a subset of the content sources
included within the interest space, and for a given content source within
the subset, displaying to the given user respective indications of users
on whose behalf a respective previously-generated request to access the
given content source has been detected.