Participants include JB Foster, Monthly Review, and (a lengthy piece by) Marta Harnecker. There's a new book by Micheal Lebowitz coming out this summer (The Socialist Alternative: REal Human Development) and the MR issue covers the "elementary triangle of socialism" which was inspired by Istvan Meszaros and put into practice by Hugo Chavez Frias.
The elementary triangle, says Chavez, is
1. social ownership of production;
2. social production organized by workers;
& 3. production for communal needs.
These 3 components are seen to interact and influence each other, etc.
Anyway, if I can provide a catalyst for discussing 21st century socialism - beyond what are getting to be rather stale generalizations about what socialism is not, or should not be - then mission accomplished.
I may have some more comments to add after reading Foster's piece and, down the road, Harnecker's as well.