  Shake slice generalizes the notion of a slice link, naturally extending the
notion of shake slice knots to links. There is also a relative version, shake
concordance, that generalizes link concordance. We show that if two links are
shake concordant, then their zero surgery manifolds are homology cobordant.
Then we give several obstructions to a link being shake slice; for instance,
the Arf invariants vanish for both the link and each component. Finally we show
that a shake slice link bounds disjoint disks in a homology 4-ball and hence
each component is algebraically slice.
