We just finished sale text for our site: http://www.cyclone-soft.com/content/view/5/8/lang,english/ I am not native speaker and i can not estimate quality of the text. Initialy I designed Russian version. Then we translated it and ordered proofreading. I guess that we lost meaning of the text. Could someone tell me what is the wrong with this sale letter? Is there services that can prepare 'professional' English in IT domain?
There are some run-on sentences and things. I would recommend pasting the text into Microsoft Word and revise the sentences that it highlights as being poor in grammar. Overall though, the content isn't difficult to read.