Helen Barrett consolidates some of her work on e-portfolios and Web 2.0. "One advantage of Web 2.0 tools is that many of them are free, although WikiSpaces may place ads on the page. There is some concern about security in a K-12 school environment, so care should be taken when using these tools with children." See also these audio clips from some of her e-portfolio presentations. And see Derek Wenmoth's summary of Barrett's presentation in Wellington, an "overview of ePortfolios, what they are (or might be), where they are and where we might be headed with them."