こんにちは、何が何だか混乱しています。では、この画像：
と、今私が利用しているDiscourseとの違いは何でしょうか？
よろしくお願いします。
こんにちは、@ondrej さん、
Communiteq（旧 DiscourseHosting）は、discourse.org とは異なる会社です。
私たちはどちらも Discourse ソフトウェアのホスティングを提供していますが、discourse.org は Discourse ソフトウェアを開発している会社でもあります。
Ohh so you provide same software under different company?
Yes. We (discourse.org) develop the Discourse software alongside the community here on meta. Anyone can download the Discourse software for free and host it themselves.
@ondrej, kind of, Discourse is open source, you can tweak and play around to host it yourself on your own server, or use the https://www.discourse.org/ service so they host it and maintain it for you.
@j.jaffeux, @david so it means anyone can use word discourse in domain name(like discourse.business or discourse.center or any other domain extension) and provide discourse platform hosting service, right?
Lawyer for CDCK (discourse.org) here.
You should speak to a (different) lawyer about legal rights to use a name in business. In the US that is a “trademark” kind of legal conversation, though most general business lawyers will be plenty able to have it, not just trademark specialists.
@kemitchell、では Communiteq（旧 DiscourseHosting）は、なぜドメイン名に「Discourse」という言葉を使っているのでしょうか？私は弁護士ではありませんが、ご教示いただけますと幸いです 
@sat, I am not your lawyer. I’m afraid you’ll need to do a bit of background reading, or find a lawyer who can help you.
I dont need lawyer 
I was just curious about this so asked you.
I am not a lawyer.
I am a full time consultant who makes a living supporting, installing, and migrating data to discourse.
I have been advised not to use discourse in my domain name, though that person wasn’t a lawyer.
I think that a lawyer would be likely to tell you that if you wanted to start a business with the discourse software that you’d be better off not using Discourse in the name. if you have a business that is about conversation analysis that using Discourse in the name would be just fine.
I bet that allowing a competing company to use the name happened before hiring the lawyer.
多くのサイトが商標を使用しているのを目にします。例えば、androidforums.com や iphoneforums.net などです。iPhone や Android は商標です。そのような例は他にもたくさん見つかります。
商標を使用するのは良くない考えだと私は感じますが、それは私の見解に過ぎません。
以下は Jeff の発言です。
https://meta.discourse.org/t/is-discourse-trademarked/8681/2?u=sat
繰り返しますが、私は弁護士ではありませんが、何か方法があるかもしれません。そのため、Communiteq（旧 DiscourseHosting）はドメイン名に「discourse」を使用しています。
This is completely irrelevant, and totally unrelated to the topic raised in the original post.
Co-founder chiming in here to avoid that we look like a scammer 
because we did consult a lawyer before we went to market.
Even when a name is trademarked, the WIPO (the organization that governs intellectual property) has decided that using it in a domain name is allowed under a few conditions (commonly known as the Oki Data conditions). This is actually a very, very common practice.
The two most important conditions are:
- make sure there is no confusion (hence the too big and too annoying footer on our website)
- do not offer products from competing brands
Of course we meet all four conditions. And like Jeff said: there is no trademark on this English word. There is a trademark on the colored Discourse logo by the way, and using that would be confusing.
@michaeld thanks for clearing this up for me 
@michaeld, good to know that. Thanks for sharing details. I was curious how this works 