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A B2B directory is fundamentally different from a search engine, even though it also presents a list of links to a certain topic. Search engines look for sites on the whole B2B based on the keywords one has entered, whereas a B2B directory has a set amount of links, usually entered by the owners of the corresponding site, which are sorted according to topic, usually not more than one or two per site, and always referencing the whole site, not simply subpages of it.
Much of what we recycle ends up being exported for treatment in developing countries. ໃນສະຫະຣັດ, it's a logistical nightmare trying to dispose of old computers, simply because of the distances