This is a website created for educators. Here one can find several sites that will help them discover techniques to motivate their students. They can also learn about the different forms of motivation such as intrinsic and extrinsic. Although students may be equally motivated to perform a task, the sources of their motivation may differ.
Students can be extrinsically or intrinsically motivated.
This site provides some ideas for motivating students. Some topics discussed for use in motivating are explaining, caring, rewarding, student participation, and even baseball. This is by all means not an exhaustive list, just a starting point. This is a thumbnail gallery of motivational posters good for classroom use.