I've been asked to post a link to the allClassicHall classical music forum. If it proves to be substantive, I'll link it in the "Links and Resources" on the main page here.
Tim Rutherford-Johnson provides an introduction to Frederic Rzewski's The People United Will Never Be Defeated here. There's a link for just about every section of the piece.
I'm cleaning up the blogroll a bit by removing the links to individual Sequenza21 composer/bloggers. The growing list of composers blogging at S21 can be found on the magazine's homepage, or at the S21 Composer's Forum, which will remain in the blogroll.