A just-published review article (abstract only) on procrastination, which looks good, and an interesting talk by the author of the review, Piers Steel, a professor of business at the University of Calgary. No mention of an evolutionary explanation.

Update of my earlier post about procrastination: To keep my email In Box un-jammed and my kitchen table unembarrassing, I now realize I must play a few games of Sudoku every day.