  A central challenge in modern condensed matter physics is developing the
tools for understanding nontrivial yet unordered states of matter. One
important idea to emerge in this context is that of a "pseudogap": the fact
that under appropriate circumstances the normal state displays a suppression of
the single particle spectral density near the Fermi level, reminiscent of the
gaps seen in ordered states of matter. While these concepts arose in a solid
state context, it is now being explored in cold gases. This article reviews the
current experimental and theoretical understanding of the normal state of
strongly interacting Fermi gases, with particular focus on the phenomonology
which is traditionally associated with the pseudogap.
