Budget Travel Online’s “Web Smart” feature has an interesting piece this month about the business of predicting airline ticket prices.

Farecast, an airfare predictor I blogged about back in June, when it was still in private beta, has recently gone public and upped their number of searchable cities from two to 75 (US only).

Good news for green-inclined travelers today, online-travel giants Travelocity and Expedia are adding the option to balance out the greenhouse gases produced by flights, rental cars, even the average hotel stay, to their checkout pages.

This year’s Webby Awards were handed out on Monday, with festivities at New York’s Cipriani, a brief performance by Prince and five-word thank-yous from the honorees.