The obvious suspects of good spelling and grammar are a must when writing potential Keyword Articles. However a few other factors need to be carefully considered too.
Try to keep sentences shorter, so instead of writing something along the lines of:
'He was the happiest person I had ever met and his happiness was infectious, not just to me but to everyone he met, even those people who others would have automatically thought of as miserable and unhappy characters.'
Grammatically the above example is ok'ish but for a website and to keep people's interest going. The sentence should be split, maybe as shown below.
'He was the happiest person I had ever met and his happiness was infectious. Not just to me but to everyone he met. Even those people who others would have automatically thought of as miserable and unhappy characters.'
The sentence has been split into 3 sentences and reads better, without the reader having to read a single sentence in one go. The Flesch scoring for the splitting 3 sentences might be higher too, in comparison to the single sentence. The Flesch score represents readability, with better scores represented by shorter sentences.
Flesch scoring is considered to aid in the search engine rankings of web content. Whilst not absolutely proven in use by Google's search algorithm, many search optimization experts agree, there maybe an influence. As such easily readable content based on Flesch scoring could attain higher search ranking in results returned.
Writing a continuous chunk of text for a submission benefits no one. Visitors to the website who are presented with information in such a way, will just move on. They only have a small attention span and if they can't find what they want within a few seconds, then it's bye bye.
The reviewer who needs to approve the text will find a continuous chunk of text tedious to read and could end up rejecting the text.
To avoid rejection from reviewers and visitors, it's highly advisable to split content into sections using sub-headings and then further split sections into paragraphs. This makes it far easier to review and increases the readbility of the text.
Information doesn't need to be boring, if it's presented and written in an informative style which leads the reader into reading more. Can make a whole difference in the popularity especially in the world of Facebook 'Likes', where readers can socially tag information, so others can find it.
Write impartially and preferably in the third person. Writing with a bias doesn't create quality information. Visitors to websites are quite savvy and can be put off by bias in the information they read.
Try to be objective, even if your writing about something you are fond of. Writing about a sports team for example in a biased style won't allure to fans of other teams and alienating these visitors will affect the number of visitors.
Writing in the third person, using language which doesn't rely on the words 'you' and 'we' is important. So instead of
'You find the Orkney Islands north of the Scottish mainland',
would be written as,
'The Orkney Islands are found north of the Scottish mainland'.
Submissions should not be sales pitches, they should be informative, providing clarity to readers. Information should be explained in an easy to understand manner.
Consider the following two paragraphs:
'Gigatastic service provides multiple aggregation with huge savings'
'The Gigatastic service is a computer system which can talk to other computer systems using different communication methods. The system can group together information from other computer systems and provide this in a single view'.
The first is too salesy and doesn't explain much. The second paragraph provides a lot more information and is not as sales orientated.