RT @MarybethGallant: Digital txtbks tied to particular device (not cheap) + annual txtbk cost. Where will the $ come from? Rent out th ...
Retweeted by Greg McVerry; original attribution is retained below.
RT @MarybethGallant: Digital txtbks tied to particular device (not cheap) + annual txtbk cost. Where will the $ come from? Rent out th ...
By Greg McVerry · Permalink · Original tweet
