The document discusses several challenges and considerations for networks and affiliates in designing and implementing APIs and mashups. It addresses questions around API architecture design, defining standard data formats, scalability, read/write functionality, and support for affiliates. It also covers common challenges like complex programming, browser compatibility, and maintenance, and potential solutions. While mashups require more development and maintenance costs, they also provide opportunities to attract users through new interactive features and access new markets.

1. John Fraser CTO, buy.at

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