LaTeX's labelling mechanism is designed for the impersonal world of the academic publication, in which everything has a number: an extension is necessary if we are to record the name of things we've labelled. The two packages available extend the LaTeX sectioning commands to provide reference by the name of the section.
The titleref package is a simple extension which provides
the command \titleref; it is a stand-alone package.
The nameref package employs the techniques of the
hyperref package to define a \nameref command; it will
work in documents that have hyperref loaded.