HOFFMAN ESTATES, Ill. (AP)— Sears Holdings Corp. joined at least two other major retailers Thursday in allowing third parties—including some rivals—to sell items on its Web site.

Sears’ latest push to beef up its Web presence follows similar moves by Wal-Mart Stores Inc., at walmart.com, and by Amazon.com, which have tussled recently over prices for books, movies and music.

Officials wouldn’t say how many products were available at Sears.com before the announcement of “Marketplace at Sears.com.” But they said more than 10 million items were being sold there through 1,500 outside vendors by Thursday.