The article How to Prevent your Blogger Blog from Redirecting to Country Domains describes to prevent the country redirect from within a blog itself.
But what about outside readers that want to see a specific blog on the .com link?
One of the reasons they want to do this is that Google does not index the country redirected sites, they only index the com site.
I had this while reading http://delphisorcery.blogspot.com/. It kept redirecting to http://delphisorcery.blogspot.nl/ (as I’m based in Amsterdam; in Germany for instance it would redirect to http://delphisorcery.blogspot.de/).
But a site:delphisorcery.blogspot.nl search would return nothing whereas site:delphisorcery.blogspot.com would return the full index for the blog.
The trick is to browse the .com version of the blog with NCR once: http://delphisorcery.blogspot.com/ncr
If you do that, Google forces a no-country redirect (just like you can do with Google.com: browse to http://www.google.com/ncr), and it remembers that choice too.
Note that BlogSpot has not done this country redirect for ever.
–jeroen