Below are a few videos that highlight they basics of Socrative and how I use it in my class.
Socrative was given a visual makeover in 2015, but the functions are all the same.
Part 1: How to log in and create a quiz/test on Socrative
Part 2: How to give a quiz/test on Socrative
Part 3: Compares different report options for Socrative
Part 4: How to share Individual Student Reports via Google Drive
Part 5: How to share a quiz/test with another colleague & import