I enjoyed this article on emoticonos in this weekend's edition of the ABC newspaper's magazine XLSemanal. My guess is that A-Level students would like it also. Let me know if you think I've misjudged the level.
If you enjoyed this resource, you might enjoy reading about my life here in Spain as an immersion teacher of a class of primary children. Zen Kyu Maestro: An English Teacher´s Spanish Adventure is published as an eBook by Monday Books. There´s a free sample chapter available to download here: Zen Kyu Maestro