Check out our blogger site which has allready a .c-v.us subdomain. You can also use a free domain for your free hosted blog. It's a solution for thrifty users.

To add properly a two extensions domain to blogger you need a dns hosting for your two-extensions domain like .c-v.us.

I recommend especially commercial zoneedit.com DNS Hosting, which offers completely free two DNS zones.

In DNS hosting you should add the following records:

www.your-blog.c-v.us A 3600 (TTL) - 216.239.34.21

www.your-blog.c-v.us A 3600 (TTL) - 216.239.32.21

www.your-blog.c-v.us A 3600 (TTL) - 216.239.36.21

www.your-blog.c-v.us A 3600 (TTL) - 216.239.38.21

In Blogger panel you should check the box: Redirect your-blog.c-v.us to www.your-blog.c-v.us