Like half the blogosphere (saw it from Josie first) I am giving Suprglu a shot. I think it will make a nice presentation space for the current run of RipMixFeed for the Text Technologies course, which is just getting started. I love the editable CSS stylesheets, and hope to roll out a new look soon, though I agree with Library Stuff, the end result should output RSS of its own. We gotta keep those feeds flowing.
Quibbles aside, RippedMixedLearning Canadians like me and Alan love it.
On another front, not all of it is “social software” in the purest sense, but I just love this list “I want to…”, a pragmatic and comprehensive list of applications that make our online lives easier and groovier — organized sensibly by how we use them. If only it were a wiki…