Kate Beckinsale is in good graces, but the writer for Yahoo! Style doesn’t tell us with whom:
If you can decipher the rest of the sentence you might conclude that Ms. Beckinsale is actually in good company. The writer of this article isn’t exactly in good graces with readers, but she is in good company at Yahoo!. If not good company, then at least lots of company. Writers at the Internet giant use words incorrectly every day (or everyday, as they would write).