Why Blogspot.com Blog not ranking in google.

I have a blog on Blogspot and it is already in the 5th position of the Google SERPs. So, it is not true that Blogspot blogs are not ranking on Google.

I just checked with few keywords and found blogspot.com blogs are ranking in Google. If your blog on blogspot.com is not ranking then just optimize it in better way for search engines. Whenever your blog will meet the desired ranking factors, it will rank. Keep doing the good work!