Shares of ReachLocal Inc. were halted in the extended session Monday after Gannett Co. announced an agreement to buy the digital marketing company. ReachLocal shares were halted at $1.69 after hours. Gannett said it is offering $4.60 a share, or $138 million based on shares outstanding. Gannett said the deal has a total enterprise value of $156 million. Gannett said it expects to close the deal in the third quarter.Read more..