Today's Web Grab

You might enjoy:

• Stephen J. Dubner in Freakanomics: A look back at the subprime mess (or: Itzhak Ben-David is a prophet)
• Finlo Rohrer in BBC Magazine: Saying no to a marathon sponsorship
• Peter Hoskin in CoffeeHouse: Non-essential viewing- the first Labour local election TV ad
• John Dickerson in Slate: Finding the exit- when it's time for nominees to go
• People in The First Post: Boris and Dave fall out over migrant policy