Business notebook

Favorites: Travelers ranked JetBlue Airways Corp. their favorite low-cost carrier and Continental Airlines Inc. the best traditional full-service carrier, according to a survey by J.D. Power & Associates and Aviation Weekly.

Resellers: EarthLink Inc. said it signed Time Warner Inc. Internet unit AOL and DirecTV Group Inc. as buyers of Internet service on the municipal WiFi networks EarthLink is building in several cities.

There first: Actavis Group HF of Iceland said it had submitted a $2.3 billion offer for Pliva DD before the Croatian drug maker said it had accepted a $2.2 billion cash takeover by US-based Barr Pharmaceuticals Inc.

Coming and going: John Snow stepped down as Treasury secretary, one day after the Senate confirmed his successor, Henry Paulson, to become the 74th Treasury chief.

Get the lead out: Mexican units of Hershey Co. and Mars Inc. agreed to pay a total of $954,000 in penalties and costs to settle claims by California that some of their candy didn't carry ingredient warnings about lead.

Coverage: Health insurance company WellPoint Inc. said it will cover Gardasil, Merck & Co.'s vaccine against human papilloma virus infections, which can cause cervical cancer.

PC pop: Dell Inc. said its inquiry into one of its laptop PCs that burst on fire in Japan suggests it was an isolated incident and no recall is planned.

No takeoff yet: Delta Air Lines Inc. said it lost $16 million in May. The carrier, which is operating under bankruptcy protection, said in a filing with the court that the loss was 8 cents a share.

Downgrade: Standard & Poor's Ratings Service lowered McClatchy Co.'s credit rating one notch to `BBB' from `BBB+,' a day after the newspaper company completed its acquisition of Knight Ridder Inc. for about $6.1 billion.

(Globe wire services)