eBay auctions, YouTube videos,
Users who create lenses are called lensmasters. A lensmaster uses the tools available online to provide links, feeds, abstracts, and lists to users who are trying to make sense of a topic. For example, a single lens could point to Flickr photos, Google maps, blogs, eBay auctions, YouTube videos, and other links. Lensmasters are encouraged to promote personal agendas, expertise, causes, products, and opinions.
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