Instead of charging sellers to list each item separately, eBay will charge 35 cents to list any number of the same types of fixed-price items. Similar changes will be made in Germany and Britain, eBay's second- and third-largest auction markets.

The move, effective September 16, is a bid to reduce the clutter of similar items on eBay -- 100 pairs of white socks will now be sold as a group, for example. The change is...