GoogleApps for K-12 ePortfolios

I've been working with K-12 educators on implementing ePortfolios. I am seeing more attention being paid to GoogleApps, as evidenced in an email I received today:

We are starting a “21st Century Learning Academy” in our district with our upcoming 6th graders next year and we are going to require our 6th graders and staff to create digital portfolios of their work. We have experimented with Google Sites/Apps already this year as we used it to create our school’s portfolio... As we worked on this portfolio, we learned how easily we could use this as a tool for 6th graders to showcase and reflect on their work.

I just set up a Google Group on developing electronic portfolios in K-12 using Google Apps:
* Group name: Using Google Apps for ePortfolios in K-12 Education
* Group home page: http://groups.google.com/group/k12eportfolios
* Group email address k12eportfolios@googlegroups.com
I am hoping that other K-12 educators can join the group, and share their experiences developing ePortfolios with these free online tools. I recommend that if schools decide to use GoogleApps, they establish their own Google Apps for Education site, with their own domain name, as a quasi "walled garden" where student work can only be viewed by someone with an account within that domain.