If you are a google webmaster you might be seeing in your stats 404 errors for pages with something like workfriendly.net/browser/office2003blue/www.yoursitename

Well it is because Google has chosen to ignore this ongoing problem with this website workfriendly.net

It is basically a web site scraper that converts a web site into an Microsoft office word document format. Great for users in the work places that want to access certain sites, but can’t due to internal filtering. However the web site workfriendly.net maybe causing more problems than it is worth to webmaster all over the web.
Casue for example when this workfriendly.net site access your site it is making a dynamic copy of your site, in which google indexes and then your presented in your webmaster tools you have 404 errors because of it and eventually maybe get pentalty for duplicate content.

So you can see this can actually turn out to be a big problem. A Google search of the domain reveals hundreds of thousands of indexed pages, only one of which, the home page, is original in its content. The rest are cached versions of the pages entered into the system.
plagiarismtoday.com has a great article with more information on the topic that can be read here .

At the time I have written this I was able to install WP-Ban for wordpress to block this site. However I have been unsuccessful in blocking for other domains that do not use wordpress.

still looking for solutions on the web, But seems no one has came up with anything.

emails to workfriendly.net from myself have also been unanswered.

If you have or find any solutions please leave comment here or here.