Gooru

Gooru  is a free search engine for learning and a OER.Teachers and students are able to search for rich collections of multimedia resources,digital textbooks,videos,games and quizzes that have alll been vetted by learning professionals.It is currently an excellent resource for Science,Maths and Environment Science teachers as it has a fantatstic library of multimedia resources for these subjects.
What is also brilliant about Gooru is that teachers can customise "playlists" of resources for their students.
Once registered, creating your own ‘play-list’ or ‘Collection’ is an easy search, drag and drop process. Teachers are also able to include key vocabulary and learning objectives in the collection overview, and are able to add voice narration to direct students or highlight points within the collection.

The collaborative nature of the site allows teachers to use and adapt collections that other professionals have created and shared. Gooru encourages users to share; it is part of the growing OER (Open Education Resources) movement.