My site's been up and running now for approx two months. It is one connected with creative writing and in particular creative writing competitions. I suppose the competition end of it would be my target market.

When I do a search in Google for "creative writing competitions", with or without the quotes, the site comes up in the top ten.

However, when I do a search 'writing competition' (singular) then the site seems to disapear, it is not within the top 100

Has this anything to do with selecting key words/phrases for example does it make that much of a difference if you use the singular or pural?

As a by-the-way question at present Google and Amazon are my only two affiliate programs any advice on how to choose a few others especially for my forthcoming ezine?