A series of free guides to writing plain english. From improving business emails and CV to grammar guides for using hyphens.

Another useful readability tool, simply paste in a block of copy and back come the results.

Readability testing – a simple service which tests the readability of various sites. Simple paste in the url and the results come back which gauge how easy it is to access the content.

How to give good copy ! some very useful techniques and approaches to good writing and presentation skills!

10 steps to writing good copy – although I've only managed to read the first two.

Nielsen classic on how user read on the web. Highlight those keywords, make sub headings meaningful, use bulleted lists, one idea per paragraphy, apply the inverted pyramid approach to writing, i.e start with teh conclusion, half the word count.