"Different from" vs "different than"?

[Belles1654]

Hello all,

I have been enjoying a wonderful educational website that donates rice to underdeveloped countries.

http://www.freerice.com/index.php. You can test your knowledge on different subjects, i chose english grammar:)

Anyhoooo..
I keep missing obviously a fine point. What is the difference between:

Her story is different from mine.

Her story is different than mine.

I tried to look up a rule on the internet and couldn't find anything. Then I remembered the wonderful grammarians and grammarians in training. So please enlighten me;))
Thanks in advance

Belles

[Cerberus™]

Traditionally, only "from" is right, "different than" being considered a mix-up of "different from" and "other than"; but nowadays some grammarians do not disapprove of "than" anymore, especially in America.
http://www.uhv.edu/ac/student/writing/grammartip2005.10.04.htm

[Fimbriae]

[Cerberus™]