A client of mine in NYC was getting gouged for Internet service in their office building, by the incumbent building-wide ISP which seemed to be operated by the landlord. When it became necessary to upgrade to a higher tier of service, their only upgrade options from the incumbent provider were $1000+ per month above market rate. When we brought in service from a competing provider, we learned that we would have to pay the building's ISP a rental fee for use of the "risers"- they owned the rights to the conduit from the basement to my clients' suite, and charged us rent at what I considered an unfair rate on our use of it.

I think many landlords around here signed away rights on telecom services without knowing better, or set up exclusive agreements like this and those mentioned in the article, but this was the worst offender I've ever encountered.