How do you collaborate with other educators from around the nation?  Have you tried connecting to others using these sites:

edWeb.net http://www.edweb.net- a free professional network for the education community

TeachAde.com http://www.teachade.com/- an online community for teachers; you can share, chat, blog and ask questions

WeAreTeachers.com http://www.weareteachers.com - join the community and share resources

What about Twitter?  I learn so much just be reading the educators I follow on Twitter.