I think that [Galois cohomology of elliptic curves][1] by Coates and Sujatha is a good place to see some of the applications to Iwasawa theory of mentioned by prof Emerton. 


  [1]: http://www.amazon.co.uk/Cohomology-Elliptic-Institute-Fundamental-Publication/dp/8173192936%20/%22cohomology%20of%20elliptic%20curves%22