This site offers a wide variety of images for presentations. It sorts the images for you when you specify that you want only images that are free to use and modify. There are many other sorting choices also.
Details from website.
Docear is a unique solution to academic literature management and possesses three features that you will not find anywhere else, namely
a) A unique approach for organizing literature, focusing on your annotations instead of documents
b) A unique approach for drafting and writing your assignments, papers, books, thesis, etc.
c) A research paper recommender systems that recommends papers that are entirely free, instantly to download, and tailored to your information needs
Due to these three unique features, Docear will fundamentally change your way of organizing, creating, and discovering academic literature.
independent, learner-centric educational public service. Collaborative projects across institutional, cultural and national boundaries. International resources, study guides and references including online learning.
This page is specific to the flipped classroom concept. The entire website provides resources for educators on classroom analytics, inclusive classrooms, preparing to teach, etc. Lots of information.
Slideshow on mobile technology and learning. Great use of visuals and gets you to start thinking about the changes in learning styles and environments.