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Not only are there network effects, but as you go through various cities in Latin America you will notice on the billboards that mobile service providers advert
by cardiffspaceman 7y ago
Not only are there network effects, but as you go through various cities in Latin America you will notice on the billboards that mobile service providers advertise "free" WhatsApp. As a result of the success of those ads, your contacts in that region will prefer WhatsApp to other media.