Links to a number of Conceptual Units, especially Literature and media - a number are in IRA's Read Write Think site which also has links to state standards. A work in progress.
Post comments on a wall - think of it as a series of Post-Its on a board which everyone can see. One can moderate comments or not - depends on the question you're asking. There's some limited ability to customize the look.
Two teacher/professors from the NYC area talking about educational technology. It's a bit "talky" so make sure you have a cup of tea or a glass of wine.