Starting to rethink...

In an attempt to get caught up on my readings for our lit review I've come across a few interesting things to think about. Firstly, in one article I read how students who use wikis are happy to add content but are reluctant to make changes. Without really knowing this, I explained to my test group that the wikis "belonged to them" so to speak. They each created a wiki and set up the admin password which I then gave to other classes. I stressed the point of ownership because I was hoping that "ownership" would be an intrinsic motivator. However, I'm now thinking that I've tainted the authenticity of the project. Wikis, unlike blogs, don't belong to any one individual; instead they are collaborative in nature. So haven't I taught the wrong message?
I haven't instructed the participating classes that "my" students are the owners so "they" shouldn't be tainted which means I'm still hopeful kids in Shanghai and Colorado go ahead and make whatever changes they want to the existing content. However, I wonder how my students will respond if and when they find their sweat and tears transformed into something else.
I may add this question to my post survey (i.e. did you accept changes made to your own work?). Also, I've just discovered that the Colorado kids are grade 4 students. I had originally hoped that the students would be closer to the age of the test group but perhaps this is a blessing. This way, it should provide a greater/more chances for my grade 7 students to "improve" the stories during the peer editing process, even if some of my students are EAL or below grade level.
Finally, one great idea I came across during my readings is actually suggested by Wikipedia. They suggest having students peer edit their articles for anything from spelling to content. This would have been easier to set up and easier to control (no reliance on other teachers) but could have provided me with similar data and come with a built in audience (of millions). Oh well, maybe next time. I may do this as a follow up to my primary research to see if the students do buy into making changes to Wikipedia and then see if their attitudes towards it as a main resource changes.

On a separate note: are our annotations on delicious enough or are we expected to write them up again for our final paper. Delicious doesn't allow us to write very much so I don't want to add/redo them all in the summer.