Thanks for the responses and for welcoming me to the forum.
Hi ShayneB, welcome to the Forums. 2 Questions - is your site mobile friendly? Have you tried the new responsive "auto" size ads yet?
Thank you, not2easy. I have a really nice, responsive theme, and I do get the highest number of views and clicks on mobile, though I also get a slightly lower CTR and much, much lower CPC on mobile.
Is your traffic the same, and does it come from the same mix of sources and keywords (to the degree that you can tell)? It kind of sounds like smart pricing, and that usually happens when there's an issue with traffic quality.
Do you see pretty much the same advertisers?
Our traffic hasn't changed much in the past year, nor have our traffic sources. I can't really attest to whether or not the advertising is the same as it was months or a year ago.
Low inventory
That means there are no advertisers specific for your topic.
I highly suspect this is a large part of the problem. A year ago we were seeing a flurry of text ads and text ad clicks. Now, not so much. The proportion of interest-based vs contextual has also flipped from largely contextual to largely interest-based.
Interest based advertising
Do you have IBA turned on? IBA may be a positive source of ad inventory and clicks for your site.
Yes.
Seasonal
Do revenues rise or dip according to election cycle? Knowing cyclical patterns can help in planning revenue stream. By taking advantage of understanding cycles one can create new sites to supplement income during lulls or even target different regions.
I only have about thirteen months of Adsense to go by, so I'm honestly not sure. In that amount of time we've gone from solid, steady earnings just over a year ago to a sudden, substantial drop toward the end of last summer (bad, but not as bad as the current drop), to exceptionally high earnings which peaked in October, to a steady decline ever since.
No shoppers
Are people at your site to buy? If visitors aren't at a site with shopping somewhere on their mind then you may have an uphill battle. That said, site related t-shirts, caps, bumper stickers and stickers are one way to generate income from issue-oriented site visitors, effectively turning the issue into merchandise that can be purchased. This worked well for sites like The Flying Spaghetti Monster. Getting back to AdSense, one way to make it work is to focus on a high impression strategy. See below.
People aren't on our site to buy, simply to read articles and watch videos. I would probably be much more concerned that this is impacting CTR if not for the fact that not only have we seen significant earnings in the past, but so have pages very, very similar to ours that we work closely with. And while those page owners have told me their earnings are also down a bit from last year, they aren't remotely close to what we're experiencing.
CPM revenue
CPM, where you're paid per impression, may be the best way to earn from non-buying traffic. But you have to keep the traffic flowing high. This could involve focusing on social media type referrals. Most importantly, check your control panel to be sure you have all of the Display Ads enabled. In your control panel go to Allow and Block Ads, then check the tab labeled Ad Serving. Then scroll down and enable all the different forms of display ads.
I would estimate that at least 80% of our traffic is driven by social media postings. Our posts are shared on five separate Facebook pages that total about 350,000 followers and on Twitter and Google Plus. Our second highest referrer after Facebook is Google search.
I do have the last four display ad options blocked. I just blocked those about a week ago to put a stop to the five cents a click CPE ads that were comprising 50% of our clicks. Our numbers have risen just a hair since then.
I really appreciate all of the input, but I think I'm just going to have to resign to the fact that the matter is almost entirely out of my hands. I realize the best way to approach a problem like this is typically to focus on quality content and views, but we've always made this a central focus. My gut tells me the massive drop is the result of low inventory suitable for our site coupled with a change in advertiser targeting and spending, but I'm perplexed by the fact that other pages just like ours aren't experiencing an Adsense drop anywhere close to this.