I work with remote communities in Australia where decent connections are hard to come by. There are some great tools out there, but a whole class accessing complex, Flash-heavy sites or powerful web-apps doesn't work.
I'd love to know what your favourite "low-fi" sites for primary students are?
Email, Skype, and imagination.
In the mid 1980's K-12 education was one of the two pioneers of the Internet (along with the disability sector). The mailing list Kidsnet was started in 1985 and Chatback was running projects in the UK in 1986. For example, kids throughout the world described Christmas dinner. Steel followed an around the world race for 10 steel hulled tall ships. Memories had those who lived in Europe during WWII tell their stories and answer questions. This was before the WWW had been invented.
Those projects are still valid today. But now the web can add a new dimension and Skype can increase the intimacy between email "pen pals"