Some days it is very high for few page impressions while the next day it falls down so bad for increased impressions.
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Having a lot of traffic dilutes the ad worth, that's why CPM goes down when traffic spikes. If you split an entire pie between 4 people, everyone get 1/4, share it with 12 and everyone gets 1/12.
Thanks for the info! I'm not sure it makes sense to me in terms of online advertising - surely more views is always better?- but it's great to know it's not just me and that there is a reason for it!
Thanks, Rebecca and relache! If the traffic dilutes the ad worth, why do people strive so hard to improve traffic to the hubs ?
You'll still make more money from hundreds or thousands of views rather than just a couple, you just won't make as much from every single view :)
mmm.. makes sense :)
Just because more people come to the Hub doesn't mean the advertiser is suddenly going to offer more money for the ad. That's why more traffic dilutes earnings while raising the chances you make some.
Oh ok! So, there are so many factors that determine things. Thanks for the insight,relache