BBC
Bbc Bitesize: Writing
The BBC offers quick (bitesize) activities, revision options, and quizzes on a variety of writing skills, covering writing arguments, writing factual documents, and writing stories.
University of Richmond
University of Richmond: What Is Analysis?
This site from the University of Richmond defines analysis through two sample paragraphs. It also contains a brief section on using analysis. A very brief site, but good, factual information is provided.