As time passed, however, some members of Reform grew increasingly frustrated at Massey's dominance of the party.

With economies already based on exports requiring unskilled and semiskilled labor, they were well positioned to nibble away at Japan's dominance in exports.

In 2000, Modern Library introduced a series of paperback classics that many in the industry saw as an attempt to chip away at Penguin's dominance.

If Lochte's win earlier this meet in the 200 free was a shot at Phelps' dominance in the sport, this was the decisive blow.

That could allow Cummins to chip away at Caterpillar's dominance in engines for huge off-road construction equipment.

Mary Eugenia bristled at her father's dominance of her mother.

Pepsi's market share has also been nibbling at Coke's dominance, according to recent supermarket scanner data.

But analysts generally believe that given the fast pace of Internet time, any outcome will be either ineffectual or irrelevant, because the market itself may eat at Microsoft's dominance.

Even in the United States, cities like Philadelphia and Miami have chipped away at San Francisco's dominance.

But at only 5.3 percent, it's still going to take a while to chip away at iTunes' dominance.