Quasi-Isometric Embeddings into Diffeomorphism Groups
  Let M be a smooth compact connected oriented manifold of dimension at least two endowed with a volume form. Assuming certain conditions on the fundamental group $\pi_1(M)$ we construct quasi-isometric embeddings of either free Abelian or direct products of non-Abelian free groups into the group of volume preserving diffeomorphisms of M equipped with the L^p metric induced by a Riemannian metric on M. 
Michael Brandenbursky and Jarek Kedra
math.GT math.DG math.GR