The document lists 14 case citations related to consideration in contract law. Some key principles that can be drawn from the cases include:
1) Past services can provide consideration for a future promise if it can be implied that payment was intended for the past services at the time they were rendered.
2) A promise to perform a pre-existing contractual duty to a third party can constitute consideration.
3) Forbearance from suing on a debt can serve as consideration if promised in exchange.
4) Additional performance beyond a party's legal duty, if requested and paid for, can also provide consideration to support a contract.
The document provides a high level overview of important consideration-related cases