'They' say there is lots of data out there on the web, for teaching. That it exists may be true, but I have trouble finding it from time to time. I have therefore tried to put together a page which lists the various sources as helpfully as I can.

There are two approaches: topic and subject.

If you have a topic which you want data to illustrate look under Data Collections as several of these have data sets listed by topic. Alternatively try the CensusAt School data which has been collected so that it contains useful and real data which can be used to illustrate practically any statistical method.

If, on the other hand, you have a subject for which you require data, read through the whole page to find the most appropriate link to follow. You may still find what you want under the Data Collections, which also list sets by subject, but the data is not likely to be up to date, which may not matter. Do not underestimate the power of Google either.