Everyone uses Google to search right? Well, Google wants to make search easier so it's dropping the boolean '+'. Yeah, you might not have used it for a while -- quotation marks have become the Google "exact" search operator of choice.
Now google has dropped poor old '+' entirely, but '-' and OR are being maintained; so is this just Google trying to remove confusion over Google+? Whatever the reason, if you're searching for specific terms on Google, you're going to have to stick with "quotation marks" from now on. [Google via The Register]