Wikipedia: Death by a Thousand Cuts - Brief description of the execution method that may have been used in ancient China, where small bits of flesh were carved away over a period of days or weeks.
Wikipedia: Disembowelment - Article on the old form of capital punishment, also known as evisceration, where the vital organs are removed.
Wikipedia: Sawing - Brief description of the execution method used in the Spanish Inquisition where the condemned was hung upside down and then sawed apart down the middle, starting at the crotch.
DPIC: Methods of Execution - Reviews types of executions used in the United States, including a state-by-state breakdown.