Top Marks is a search engine for educational resources. I learned about Top Marks through Paul Hamilton’s excellent blog. Top Marks is designed for busy teachers in need of a quick way to find classroom activities. You can search for resources by subject area and grade level. Top Marks is based in the UK so you do need to have a basic familiarity with Key Stage levels in order to find age appropriate resources. Those teachers who have an interactive whiteboard will want to explore the section dedicated to interactive whiteboard activities.