Updated from 1:35 p.m. EDT
Barnes & Noble.com
, the online offshoot of the nation's largest brick-and-mortar bookseller, soared Tuesday after the company said that it had entered into a marketing
pact with Web portal
that will make it the premier bookseller advertising on Yahoo!'s vast directory.
Barnes & Noble.com ended Tuesday regular trading up $1.38, or 30%, at $5.94, after trading as high as $6.31.
Barnes & Noble.com, based in New York, is replacing
as the top bookseller advertising on Yahoo!. Barnes & Noble.com will be featured throughout the Yahoo! directory and a featured merchant on Yahoo! Shopping, the top-ranked portal shopping destination on the Web, according to
Amazon.com shares ended down $2.06, or 5%, at $40.75.
Under Santa Clara, Calif.-based Yahoo!'s previous agreement with Amazon, users that searched for a keyword on Yahoo!'s search engine were greeted with a banner advertisement suggesting that they buy their books from Amazon.com. However, recently Amazon.com did not renew its three-year marketing pact with Yahoo!, opting for
In addition, beginning in October
Barnes & Noble
superstores, which have 551 shops throughout the country, and Yahoo! will offer retail customers free Internet service through
, and Internet marketing and service provider based in Sunnyvale, Calif.
Yahoo! closed up $3, or 3%, at $108.06.