The links below will take you to a couple of items of interest.
1. What's the third person singular nominative pronoun?
http://business.verizon.net/SMBPortalWeb/appmanager/SMBPortal/smb?_nfpb=true&_pageLabel=SMBPortal_page_newsandresources_headlinedetail&newsId=328606&categoryname=Technology&portletTitle=Technology
2. If I can't relate to you, does that mean you're not relatable?
http://chronicle.com/blogs/linguafranca/2011/08/26/im-relatable-youre-relatable/
These two articles strongly suggest that the language continues to change rapidly.
Geoff Layton