Thinkfinity (which is supported by Verizon only) provides educational resources, lesson plans and more. There are professional development opportunities within the website (e.g., workng with refugee families), though there is no information on the background of the presenters nor whether these reflect professional literature. Nevertheless, looks interestng.
This website has lots of potential for setting context when teaching a novel or time period. Check it out--you insert a year and then lots of interesting videos are selected (advertisements, etc).