Abstract: A method, apparatus, and system of facilitating value-based bartering over the internet are disclosed. In one embodiment, a system of e-commerce includes a computer network, a server to host a market place website, a listing module to enable an entity to assign a specified value to a good and to list the good for trade on the market place website such that the listing of the good will expire after being posted for a specified period of time, a trade module to enable an entity to trade the good for an other good of an other entity on the market place website, a search module to enable the entity to search a list of goods on the market place website.

Abstract: Disclosed are a method, system and apparatus of an allocation of digital media store credit for presentation of an advertisement with a media player. In one aspect, an advertisement is provided to a media player. A media player is instructed to present the advertisement. A credit to an account associated with the media player is allocated if the media player presented the advertisement to a human user. The media player may present the advertisement according to a verification protocol. The verification protocol may be provided by the media server. The verification protocol may include a challenge-response test that ensures a response to the challenge-response test is generated by a human.