I have another blog that has several years of archives, more than this one. The blog at most, would get about $100 per year in revenue from Google Ads. Lately, that blog has seen a surge in traffic. This is a little perplexing because I have not done much as far as blogging goes.
In the past few years, the other blog has been very low on my priorities; thus, I might update it less than 10 times per month. That's being generous.
Even so, the blog has seen an uptick in the amount of visitors and ad revenue all of the sudden. Looking at the stats, the traffic is mainly coming from search engine results, primarily Google. What pages? That's just it. Nothing consistent.
It is difficult for me to infer why the sudden surge without also knowing what ads are being displayed alongside the blog posts, which are likely different depending on the visitor.
Perhaps Google is giving preference to their own properties?
Perhaps launching a Google+ page for the blog was a good move?
Perhaps I have reached a critical point in which I have enough blog archives to turn up for most local results?
Perhaps it's a temporary anomaly that will disappear as mysteriously as it came? Who knows?
Of course, I'll be analyzing stats to find out what's going on.