For the United Kingdom and Ireland, swags has put up a facebook page for you and you can like it here. You can also find the blog for the United Kingdom and Ireland here.
For Australia, swags has not put up a facebook page, but as soon as they do I will post that link for you. But they have put up a blog and you can find it here. I am not positive, but believe that most of your codes will be posted in the blog.
For Canada you pretty much get what the United States gets as far as the codes go. But they have put a blog up for you also, and you can find it here.
If you enter a code that is not from your country you will see this,
|This means the code is not for your country|
I hope this has helped swagbucks friends out in locating codes in their respective blogs. As always if you have any comments, suggestions or questions you can leave a comment and I will answer them. Or you can find me here.