E is for http://www.eyejot.com/ Sending video messages with Eyejot is as easy as sending email. There is no software to download or install. Just login to your account, record or upload your video, and send!
F is for http://www.freetech4teachers.com/2011/07/historypin-adds-android-app-to-view-old.html About the blog: The purpose of this site is to share information about free resources that teachers can use in their classrooms.
H is for http://www.hotchalk.com/mydesk/ HotChalk is a learning environment for K-12 teachers, students and parents that includes a learning management system (LMS), a rich library of teacher-contributed lesson plans, premium digital content, and professional development for teachers in a Web-based environment. Available through any Internet browser, the HotChalk Learning Environment is an easy to use system and brings teachers, students and parents together to improve education.