Print a diary of your tweets. Think "Class notes" (Backchannel Info)
Archive your tweets: print to a pdf.
Add tweets & twitpics to your holiday photos.
Surprise your friends with their tweet journal.
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Free k12 school resources on math, history, social studies, science, living things, space, reading, writing, art and music for k12 students and teachers.
Math
Basic arithmetic, measurement, shapes, counting number, money, and word problems.
Science & Technology
Computers, technology, physics, chemistry and engineering for Kindergarten Kids, K-1, and K-2 students.
Living Things
Free educational resources on living things includes animals, the human body, plants and safety.
Art & Music
Arts and Music includes art history, music, painting, drawing, theatre and dance.
Social Studies
social studies includes geography, famous people, holidays and world cultures.
Earth Science
Geology, oceanography, weather, nature and the environment for kindergarten kids, K-1, and K-2 students.
Reading & Writing
Language arts includes reading, writing, grammar, poetry, alphabet, and online stories.
History
America history, world history, and ancient history.
U.S. History & Culture
Education resources on America includes United States history, government, geography and culture.
Space
The universe, solar system, stars and space exploration.
TeAchnology is a site that has tons of resources for teachers. There are worksheets, lesson plans, rubrics, teacher resources, printables, tools, tips and there is a membership option. Some of the materials are available free as samples but if you want access to all of them I believe it is 29.99 a year.