Youtube – I made a couple of videos about using Twitter for Teachers. It’s VERY basic, but maybe you’ll find them helpful!
MTBoS directory by classes taught – SO many awesome resources here! Be sure to add yourself to the list. 🙂
40 Hour Teacher Workweek Club (I’ve done it and love it!)
Open Up Math Curriculum (6-8) Amazing. If you teach middle grade math, you need this!
Illustrative Mathematics Curriculum (9-12) Looking forward to giving this a try this year.