I find that the Stanford Encyclopedia of Philosophy can be trusted to provide solid background information on matters philosophical. I would point to the following five entries as particularly relevant to my presentation on Merleau-Ponty:
For those who are drawn to a less formal description of his world, At The Existential Cafe by Sarah Bakewell offers an entertaining and readable introduction. The first chapter is available here.
Lev Vygotsky was an almost forgotten early Soviet thinker. James Wertsch's Vygotsky and the Social Formation of Mind provides a solid introduction. The first chapter is available here.
Merleau-Pointy is a not so transparent writer and thinker. Merleau-Ponty: A Guide For The Perplexed by Eric Matthews attempts to lead the reader through Merleau-Ponty's conceptual world. The first chapter is available here.
George Lakoff led me in the direction that you have seen in this presentation. Lakoff and Johnson wrote a leading popular introduction to this new view of self. Their Philosophy in the flesh is a good place to start. The first two chapters are available here.
I couldn't end this list of references without including at least one reference on Gestalt Psychology. The Gestalt Psychology entry in Wikipediate provide a current overview of the field, with all of the pluses and minuses for which Wikipedia is famous.