I accidentally 1,320 words on British vs. American advertising!
Pardon the cheesy cross-linking, but this is one of my favourite (and longest) Britishisms posts thus far.
This post's short URL is http://tumblr.com/xox1qb6e3
This theme isn't yet complete, because I'm lazy. Don't mind the rough edges, and the unexpected appearance of this message at the bottom of the page.