Thursday Threads has been a back-burner activity for quite a while now. Blame it on too many interesting things happening at home and at work (to say nothing of the early arrival of spring weather). This week will be only a slight exception with just two threads of mention rather than the typical three or four. First is the announcement by Blackboard that it is starting up an open source support division and acquiring/hiring some of the bigger names in that sector. Second is a reflection on two independent stories about the effect of copyright uncertainty and digital rights management on book materials.