%0 Journal Article %T More Uses of Exchangeability: Representations of Complex Random Structures %A David J. Aldous %J Mathematics %D 2009 %I arXiv %X We review old and new uses of exchangeability, emphasizing the general theme of exchangeable representations of complex random structures. Illustrations of this theme include processes of stochastic coalescence and fragmentation; continuum random trees; second-order limits of distances in random graphs; isometry classes of metric spaces with probability measures; limits of dense random graphs; and more sophisticated uses in finitary combinatorics. %U http://arxiv.org/abs/0909.4339v2