Tribune Co., Knight Ridder unit buy 2 recruiting Web sites.(Chicago Tribune)

Tribune Co. and KnightRidder.com said Monday they have agreed to buy two job recruitment Web site operations, CareerPath.com Inc. and CareerBuilder Inc.

Tribune and KnightRidder.com said in a joint statement that the two sites will likely merge to form a new, privately held company operated under the current CareerBuilder management.

Under the terms of the agreement, the acquisition of CareerPath is a cash-for-stock merger. Terms were not disclosed.

Chicago-based Tribune and KnightRidder.com said they agreed to buy CareerBuilder for $8 per share in cash; CareerBuilder shares nearly doubled Monday, gaining $3.69, to $7.81, on the Nasdaq stock market. …