I have just set up a facebook page based on Jonathan M Shiff Productions which will contain lots of information about his shows, including H2O. There will be interviews, unseen behind the scenes clips and videos.
As well as this there will be a lot of new info about the sequel to H2O, 'Mako Mermaids'
Many episode guides, facts and more will be announced, including such questions as 'will the original mermaids be returning?'
Here is the link.
I hope you will like and enjoy the page.