I recently had a paper accepted and published in the Journal of the American Society for Information Science and Technology (JASIST). The article appears in their Advances in Information Sciences series, and is a review of the critical questions that surround youths participation in social network sites. How do they use them? What are the hypothesized effects on youth relationships, psychological well-being, and learning? These are some of the issues I consider in the article. You can find the article here, or feel free to contact me and I would be happy to share the article with you.
Professor, University of California, Irvine