1 year. Built up a hobby site slowly over the past two years, at the end of the first year it was making £7,700 a month.. It is still active and earning around £2-3k per month with only about 1 hours work a week. Currently looking to sell it on as I have just started on a new project.
What do you mean by "hobby site"? A site covering a specific hobby or something else? Can you tell more about how you earn money (memberships, advertisements, something else)?
The revenue it makes now is through memberships and affiliate revenue.