Not a new tool - but a refresher of the resources and content on the website. Provides educators/students resources including lesson plans and examples of student work. Many of the examples are for reading/language arts, but can easily be adopted for other subject areas (all grade levels).
Funny (fictional) Tweets by historical figures - summery of the person's contributions in 140 characters. Some of the Tweets are not kid friendly, so read in advance. Check ReadWriteThink to find the lesson plan for students to write their own historical text messages.