Blendspace Reviews
Graphite Review
Graphite is one of my favorite places to go for a review of an educational technology resource. It provides their take on the resource, learning scores (engagement, pedagogy, and support), a learning rating, a teaching rating, set up time, what it is good for, and "field notes" from teachers actually using the resource in their classrooms.
New Learning Times Review
This review provides a general overview of Blendspace, its pros, its cons, and their takeaway.