Drop in Adsense Earnings after Switching to new Blogger

This site experience a major drop in adsense earnings recently and became lower ranked in search engine results. I have several blogs but this one is my main adsense earnings blog. This site has also always enjoyed good search engine results landing on top pages for certain keywords. (Because search engine loves blogs there is no denying that). I don't do any SEO techinques. I just write. And this is good enough to get me on top of the search engines.

However recently when I checked my stats, I found that there were almost no search engine visitors to this blog and my adsense dropped correspondingly. (I started earning in a week or more what I used to earn in a day). I couldn't understand why.

Then I got rejected for a paid post I did for Blogsvertising and was informed to remove the nofollow tag that was in my blog template after I switched to the new Blogger. They gave me this link on how to do it: New Blogger, nofollow and wordpress import. I did as suggested in the post. My blog post was approved, my page started appearing in search engines again and my adsense earnings is back on track. Phew!

Now, this did not happen for my other blogs which were also hosted on Blogger and switched to the new blogger. I believe it only happened because this blog required me to key in a word verification before I publish or save a blog post. (I have since requested for the need to key in word verification for blog posts which is required for spam blogs! I have no idea how this blog got identified as a spam blog.) You can view my request below (highlighted in italics):

Your blog requires word verification

Blogger's spam-prevention robots have detected that your blog has characteristics of a spam blog. (What's a spam blog?) Since you're an actual person reading this, your blog is probably not a spam blog. Automated spam detection is inherently fuzzy, and we sincerely apologize for this false positive.

We received your unlock request on March 20, 2007. On behalf of the robots, we apologize for locking your non-spam blog. Please be patient while we take a look at your blog and verify that it is not spam.

Find out more about how Blogger is fighting spam blogs.

I do not know for sure if this was the actual reason for the drop in my adsense earnings but the timing suggests to me that it is. My adsense earnings dropped after I switched to the new blogger and came back on track after I removed the nofollow attribute from my blog template. If this has happened to you ie you have experienced a drop in adsense earnings after switching to the new blogger, perhaps you could try it and see if it works for you.