peHUB First Read

* Vinit Nijhawan: Why U.S. entrepreneurs should compete on price * Marshall Kirkpatrick: What happens when you deactivate your Facebook account? * Martha White: BP can learn from other epic corporate mistakes that came before the spill * Think yesterday's equity market was nuts? Well, it wasn't anything compared to April 4, 2000. * Morning Call: U.S. futures signal rebound, London falls early, European shares sag, the Nikkei pares losses and Hong Kong shares slip. * Udayan Gupta: Venture capital must start over * Porn company has a plan to stop SEC time-wasting * Paul Kedrosky tracks recent interest in Greek tourism * The one thing a killer location-based service needs to be: Fun * Cleantech VCs: Not to alarm you, but have you taken a recent look at A123's stock price?