Try this:

1. Copy this url to your address bar: http://techbytes.co.in/experimental/bypass.php?url=http://

2. Append the url of the blocked blog. So if you, for instance, want to reach mysite.blogspot.com, you will construct the url http://techbytes.co.in/experimental/bypass.php?url=http://mysite.blogspot.com/

3. Hit Go.