The blurb says:
William Croft on Language Evolution, Language Change vs. Language Evolution Studies, Linguemes - Units of Language Evolution, Modeling Language Evolution with Linguemes, Mathematical Modeling of Language Evolution, Reticulation and Language Evolution Trees.
Linguemes are memes made of words or sentences. I'm not sure they need their own whole word. It probably brings more harm - in dividing linguists from the rest of the memetics literature - than it offers in benefits. However, I don't know this with much certainty.
The Applied Evolutionary Epistemology Lab has a YouTube channel is here.
This video is from the 2013 Winter Interviews on Evolution playlist - from the 2013 International Winter School on Evolution.