I have lot of SEO-ed articles on my blog that rank pretty well on Google and get me organic traffic.
About a week or so ago, I changed my blog theme (although I bought it from the same company), and the amount of daily traffic I get from organic search has started to drop by about 30%.
What gives? Can a new blog theme do that? Do I need to optimize it somehow?
Now that I think about it, I made another change at the same time and I don't know if it also had on impact: I removed the 'Relates Posts' section that was at the end of each post, because I want more people to click on the banners at the end of posts instead (they point to other sites).
As a result, the average time spend on my blog by a visitor dropped from 2:00 to about 1:20. Could this be a cause for my problem as well?