Both employ some degree of crowdsourcing, Wiki more than HuffPo, and aggregation, HuffPo more than Wiki, but they both rely heavily on readership whims.
But at the start he envisioned a wiki undertaking and set up a sprawling Web site (wiki.laptop.org) with dozens of pages dedicated to the laptop's every detail--its goals and technical specs, downloads of the latest software and problems with the latest prototypes.