The George Lucas Educational Foundation (GLEF) is a nonprofit operating foundation dedicated to promoting a vision of inspired learning and teaching - where students are challenged and engaged, have access to interactive technologies, and are supported by inspired teachers and involved parents and communities. Edutopia spotlights classrooms where innovations are taking place.
This organization has a plethora of materials/resources for all teachers in all content areas, and I refer to it a lot in my own practice for suggestions.
This website allows you to create charts of various types. Then you can print them, embed them on a website, or share them through various other types of social media. It also has a gallery where you can view charts made by others.