Gmail in the Classroom

I am a teacher in a preschool classroom so using gmail is not an option for me to communicate with with my students, however, learning how to create groups for gmail will allow me to efficiently communicate with the families of the children I have in my classroom.  I am very excited to use this feature with a 'whole' class email.  Once the group is created it will save a lot of time if I need to reach all the parents quickly.  Thanks for the information on how to do this!