Google: We spell it colouring here
Not content with its various other spelling problems, Google is now trying to make us spell colour the US way.
Do a search for colouring, and of the first 10 results:
- 7 spell it coloring
- 3 spell it colouring.
I suppose you could argue that the relevance of the information is unlikely to be affected by whether the site uses US or UK spelling for a search time like this.
On the other hand, get your spelling Sherman T20 tanks off our lawns (or yards).

Search for colour, get color
As you can see, after the image results the first one spells it coloring. And don't get me started on all those Disney and Simpsons image - ie American - results ...
[...] in the UK are starting to prefer the US spelling of some words. Although we can still spell centre, colour and theatre, with the following words the US spelling is now searched for more often than the UK [...]