I don't know how you imagine an online Zen temple. What should be clear, is that a temple is a place of religious service. People go there to get something. Most of the time rituals. Even in a Zen temple. It can also be a place of worship, as it usually houses a buddha statue, sutras, and occasionally relics. Temples also have at least one priest to do the services. Question is then, are you a priest, or do you know one to serve in the online temple? Another function of temples is community life. The online form of community life is found in forums, chatrooms and networking sites. Are you planning to have that too?
"There is no such thing as the real mind. Ridding yourself of delusion: that's the real mind."
(Sheng-yen: Getting the Buddha Mind, p 73)
“Don’t rashly seek the true Buddha;
True Buddha can’t be found.
Does marvelous nature and spirit
Need tempering or refinement?
Mind is this mind carefree;
This face, the face at birth."
(Nanyue Mingzan: Enjoying the Way, tr. Jeff Shore; T51n2076, p461b24-26)