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The short answer is: yes, while in beta.
You know, it costs money to develop the service and keep it running. I am not a big corporation and certainly cannot do it for charity. So eventually I am forced to monetize Tagul. I don't have the exact monetization strategy by now, but probably it will be some mix between embedded in clouds ads and a paid subscription. Also I have a strong intention to leave it free for non-profit use.
Therefore if you consider using Tagul clouds for your enterprise please be advised.