We've always seen British spellings in literature. But with the Internet, both variations are now mainstream for audiences worldwide. With some exceptions, people are generally supposed to use what's native to them. If you look really closely, you'll also see differences in punctuation rules. As an example, in the US, when commas are used in conjunction with quotes, they're always supposed to be located inside the closing quotation mark. In British, inside or outside depends on context, pretty much like the US rules for question marks and exclamation points. Another thing you'll notice is different interpretations of what's plural. In British, you'll hear "Microsoft are" rather than "Microsoft is." Another place that you'll find some British English is in our message board interface. To the right of the post editor, you'll see that it says "Font colour." phpBB only offers one flavor of English, and when we set up here, we decided that it wasn't worth the effort to track down those spellings and change them. We've addressed actual misspellings, though. The prepackaged e-mail notifications, for instance, contained some pretty egregious errors that would have been wrong no matter which side of the pond you were on.