I have a Pinterest board called "School". I have considered creating different boards by subject, as I have quite a collection of pins. I use pinterest to find ideas for charts in all subject areas, there are may resources from teachers pay teachers, and recently it has been a great resource as I explore and implement flexible seating in my classroom. I also use it as a resource for morning messages and info on google classroom. Below are a few links I have found to be useful:
http://therigorousowl.com/be-boss-at-flexible-seating-tips-and/http://alicekeeler.com/2015/05/11/50-things-you-can-do-with-google-classroom/https://www.pinterest.com/pin/224335625168960799/