D2L is a Learning Management System (LMS) that we here at OSU know quite well thanks to the Online Classroom. It is a great way to connect all of your students into the class. You can do online quizzes, synchronous communication, asynchronous communication, upload syllabi and other content, etc.

Blendspace is a social bookmarking site. It can be used to find content and create lessons.

This is a great website to find and share lesson plans and other teaching resources for teachers across the world.

This is a website that provides teachers with a way to find and/or create lesson plans. It has many great links for grades K-12 as well as links for professional development and parents.

This is a collaboration website. It allows teachers from all over the globe to interact, share, and collaborate their different ideas and lessons.