Earlier when Google launched the adsense program, blogspot was the best way to get an adsense account, but now because of huge demand of adsense , Google is not entertaining adsense account from blogspot domain easily. The most common response from adsense is “ Issue with page type”. Though adsense approval process for blogspot is easy and feasible for many.

co.cc is a free domain. It's not only URL forwarding but we can setup DNS Records, A, MX, and CNAME records. We can change our blog's name to become "name.co.cc". It's more simple than we use domain "name.blogspot.com". To change our default blogspot name to co.cc domain name there are some steps to do. Here is the tutorial to setup domain co.cc