I have been reading a lot of articles about how changes in Google’s AdSense policies are affecting some of the websites. Mainly MFA, i.e., Made For AdSense sites and Arbitrage, i.e., sites that buy and sell traffic. This is the right step for Google and while it might impact it’s short term revenue potential, it’s good for the long term viability of online advertising.
However, in addition to discussions about the above two types of sites, people also started complaining that their revenue per click has declined or is declining. While Google might certainly be tweaking their algorithms, here are some factors external to Google that might be forcing these lower rates.
1. Increased Supply: CPC is based on bidding and budget. So, essentially supply vs demand comes into picture. Say, someone did research and figured out the high paying keywords and started making money. Over time, more and more people are likely to figure out and enter the same niche and as a result, the supply of page views for a given keyword is likely to increase. So, with more page views for a given keyword, and people clicking the ads, the budget of the higher bidders will be exhausted at some point and will trigger lower bidders. The net result is a decreased EPC (earnings per click).
2. Decreased Demand: MSN (through AdCenter) and Yahoo! (through Panama) have ramped up their Advertising solutions and are constantly trying to increase their own search engine traffic. As the effectiveness of these alternate ad networks improves, more advertisers are likely to diversify their ad spend to multiple networks. As a result, the demand on Google’s network will decrease.
So, using the conventional wisdom of Economics 101, what happens when supply increases and demand decreases? The price of the product decreases! Surprise, surprise.
So, for all those who are thinking of betting their future through advertising based on some of the examples out there on the web, be aware of this phenomenon. If everyone starts jumping into advertising, who is actually going to produce products or provide services and advertise both of these?