Sites that may help you with writing...

http://www.cgu.edu/PDFFiles/Writing%20C ... tement.pdf

See specially these topics:

-Determine your approach and style of the statement
-See the DOs and DONT´S
-Words and phrases to avoid without explanation
-TOP 10 GRADUATE SCHOOL ESSAY WRITING TIPS

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http://homeschoolsuccess.com/common-app ... trategies/

Try to read the "tips", hints, related to writing, it has tips to others skills as well. To those that are going to sit the IELT
exam.

http://ielts-simon.com/ielts-help-and-e ... pr/page/1/
http://ielts-simon.com/ielts-help-and-e ... pr/page/2/
http://ielts-simon.com/ielts-help-and-e ... pr/page/3/
http://ielts-simon.com/ielts-help-and-e ... pr/page/4/
http://ielts-simon.com/ielts-help-and-e ... pr/page/5/
and so on...

In a number of ways it could help with any kind of writing (CsF included, if you respect the requirements of the exam).
They come in handy with "how-to" about the exposition of ideas, how they might relate to each other, some good estrategies etc.

Hope it helps.