Miguel Guhlin has provide this great insight to resources assisting in digitizing writing. This was created as a reflection upon his experience in the Abydos program. Much of it goes along with Six Traits of Writing.
Perhaps the easiest Wiki I've ever scene. Anyone, and I mean anyone, can now create a wiki for use with their students or to share information with colleagues. I wonder what their business model is and how long they will be able to sustain this approach, but until then I plan on using orb.com with teachers as a great entry point tool.
The USGS has several social media presences1. The sites listed below are those that are considered official USGS presences. Any site found that is not listed below is considered a non-USGS presence.