Chris Greene passed on this great sheet which details numerous groups you can join in edmodo that relate to your subject / year group. These groups are updated regularly with useful resources for you to use and a personal learning network for you to connect with.
Click on the blue button then click on the group URL that will open in the sheet. You will then be asked if you wish to join the group.
I find this useful for keeping upto date with teaching resources, tools and techniques.
CLICK HERE for the sheet