epals.com- Find epals based on age, grade, geography, curriculum, language, and more. Collaborate on projects here.

Heinemann Interactive- Click on Keypals on the left menu and find worldwide keypals for anyone ages 5-20. 

Intercultural Email Classroom Connections- Here is a free service to help teachers link with partners in other countries and cultures for e-mail classroom pen-pal and project exchanges.

Soviet American Penpal Exchange-  SAPE seeks penpals in the USA and  other countries for students (and adults - mainly parents and teachers) in the former USSR countries who wish to correspond using postal mail. Use this free service as part of a Social Studies unit.

Mrs. Gray's Classroom- Here is a list of internet projects that your class can join. 

Kid's Space Connection- Find classrooms from around the world at this listing, organized by grade level.

Postcard Geography 2000-2001-Your class commits to exchanging picture postcards (purchased, computer or handmade) with all other participants. This "Class to Class" exchange is appropriate for all ages.