I've two posts up at Demography Matters.
The first one is a compendium of links, everything from the return of mass emigration to Ireland to the movements of soccer players as modelling global migration.
The second one lets everyone know that the disappearance of the long-form census will hurt Canadians, not least by biasing upwards averages (the poor and marginalized will not be adequately covered).
Go, read.
Go, read.