Following a disappointing first half and an enterprise-wide portfolio review, Reed Elsevier is putting portions of its Reed Business Information (RBI) unit back on the block. This time around, the company's US titles only are up for sale, barring a handful that will become part of RBI Global. Variety, which has a weekly circulation of 34,000, Reed Construction Data, RSMeans, MarketCast, LA411 and BuyerZone, will all be retained.