Interesting. I think that there’s a few things to consider here.

First, during testing it’s a bit of a free-for-all. I can imagine users settling into a few communities after a while. Those communities would nudge users towards adding resources to particular collections.

Second, tagging can help with this. That’s on the roadmap.

Third, I think we can do some kind of analysis of whether a link or resource (via the MD5 hash) already exists.

:)

I’m starting to imagine the sense of this now: I think it’s important for users to have a concept of the collection as being quite small - with maximum ten resource links in it. That point,(max=10) should probably be presented to users quite up-front when explaining the approach of the site - ideally people might discuss a collection with the level of granularity that they would for a single lesson plan? eg. what’s the main learning objective, what’s the ideal order to present the resources, how does it fit into the week’s topic..etc…

Yes, we don’t want to be prescriptive but it might be worth allowing people to know about the 10 resource limit upfront!