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Bulletin boards can also be both highly specialized and general. There is a directory of organizations, the ability to add a company card and upload a sales announcement or product catalog.
As a rule, they do not require additional costs, ivory coast consumer email list placement is free, rarely a commission is paid for placement. On such boards, the order is not made on the site, but, for example, through the buttons "contact the supplier", "go to the site", "leave contacts".
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Image from the author's archive
Useful material:
Traffic and lead generation in B2B: effective promotion channels in complex niches
Multi-format online resources for B2B
This type of portal implies not so much a company catalog and products, but a community, which can be of a general format.