How close is Window Farming to "A MOOC in Biology"?

Being curious, I recently started my window farm, despite the fact that I already have a garden.

My Window Tomatoes Photo: Linn

Here is an introduction video about window farming project:

I feel that this movemnet is close to a MOOC like PLENK2010, CCK11 or EDUMOOC. It is free and open to all to join and it is about collaboration and learning and it is a mix of people, different backgrounds and expertise. 20 000 signed up so far I think. What is missing? The hashtag? Surely not the substance? ( I just read Siemens blogpost Losing interest in social media: there is no there, there)

My Window tomatoes Photo: Linn