A method and system for reserving future purchases of goods or services. A server network device provides to a client network device via a computer network, a list of available goods or services including plural electronic options with associated option fees for the goods or services. The plural electronic options include electronic option terms established by one or more suppliers who can supply the goods or services. An option fee is associated with a reservation price to purchase desired goods or services at a desired future. Electronic option terms for a selected good or service for a desired supplier who can supply the selected good or service are provided. A purchase of an electronic option for an option fee for a desired good or service for a desired supplier is accepted on the server network device. The purchase of the electronic option is accepted according to electronic option terms established by the desired supplier. A type of electronic option used with Method 26 is governed by the option terms established by an individual supplier. The option terms may vary greatly among the individual suppliers and no two suppliers may use the same option terms. Use of variable option terms may provide significant flexibility for use of the electronic options by suppliers. The method and system may also allow a purchaser to risk a small amount of money to use an electronic option to reserve a price to purchase desired goods or services at a desired future time. The methods and systems described herein may be used to provide electronic options for business-to-business ("b2b"), business-to-consumer ("b2c"), consumer-to-consumer, ("c2c") or other types of transactions.