Not sure how they work exactly, but have you looked at http://noredink.com (and as another commenter mentioned, http://grammarly.com/)? I'd be interested in your thoughts.
I've bounced my idea off my wife before and asked whether such a thing existed. I do recall her mentioning things like noredink and commenting that they weren't a match for one reason or another (the specific reasons escape me at the moment).
Visiting noredink.com now ... I can't actually figure out what it is the site offers from a cursory glance, so I can't even begin to figure out whether it matches my idea and what issues it may have had that excluded it from her classroom.
I'll bounce grammarly off her later though, in case that's new.
Visiting noredink.com now ... I can't actually figure out what it is the site offers from a cursory glance, so I can't even begin to figure out whether it matches my idea and what issues it may have had that excluded it from her classroom.
I'll bounce grammarly off her later though, in case that's new.