The first thing you see when you login to your WordAI account (you can take advantage of the 3 days free trial) is the welcome page. On it, you will basically be introduced to what WordAI is and what it can do for you, including the latest releases of the software and a link to the Apex Forum, which is a pretty fast growing SEO forum created by the WordAI team.
There are a wide range of applications that might benefit from the content rewriting capabilities of ArticleRewriterTool. The obvious applications include building content for your website or blog. Other applications include any kind of essay or creative writing (virtual or not), twitter, newsfeeds, Craigslist posts or even paid article writing services.