This practice was called raising money by circulation.

This made it the largest Christian rock magazine by circulation, a title it held through the late 1990s.

The Journal is the largest newspaper in the United States, by circulation.

Today, it is the world's largest publication by circulation, selling 18 million copies a month and collecting 2006 revenue of $2.38 billion.

They built it into the world's third-largest newspaper group by circulation by the mid-1990's.

Convection: A transfer of heat energy by circulation through a gas or liquid.

Pollutants from around the world are carried north by rivers, ocean currents and atmospheric circulation.

By circulation it is the eighth largest newspaper in any language in the world.

This was not a success; advertising revenue fell by 50% and circulation to 700,000 between 1990 and the closing of the magazine in 1992.

It is the largest newspaper by circulation in the Philippines.