There are two methods that a country can impose income taxes on companies: territorial and domiciliary.

FORBES: Holiday Season Is Just Around The Corner -- Corporate Tax Holiday Season That Is

There are essentially two methods to remove carbon from fuel: post-combustion and pre-combustion.

FORBES: Carbon Capture And Storage: Yea Or Nay?

There are also two methods based on banks' own internal ratings.

ECONOMIST: Bothersome Basel

There are two main methods of creating a single-frequency network.

ENGADGET: blogger-avatar

They are fighting a battle on two fronts - to dispel the idea there is anything inhumane about their traditional methods of slaughter, and to defend their right to live according to their religious beliefs.

BBC: Should animals be stunned before slaughter?