Wide selection of classroom and teacher supplies. Their pricing is good and so are their terms. This site also provides classroom tips for teachers, a good resource for new and experienced teachers alike.
Academy Curriculum Exchange
A collection of lesson plans for K-12 educators (math, science and language arts lesson plans). Fantastic resource.
Kids Page Archive
Free printable math worksheets.
National Endowment for the Humanities Summer Seminars & Institutes
Rigorous, residential seminars and institutes in the humanities are available to educators who teach American K-12 students.
Inspired Teacher Scholarships for Visual Learning
Thirty educator scholarships will be awarded to support the ongoing training in technology and visual learning of teachers across the United States.