I tried these services on BloggerStop.Net, in 3 phases:
– Kontera alone
– Kontera + Infolinks together (Although Kontera doesn’t allow you to run another in-text ad service simultaneously 😉
– Infolinks alone
According to my experience I found Infolinks way better than Kontera. Although Kontera is a well established advertising network but it fails to impress the bloggers at an important criteria – revenue sharing.
While selecting an advertising service, you must compare the eCPM values from different advertisers. eCPM in simple terms is the revenue being given to the publishers per 1000 ad-clicks. And so it is the basic criteria of selection of an advertising program.
And the difference in the eCPM values between Kontera and Infolinks is not by a few cents but you will be amazed to know that they are differed by 10-20 times. Now that means, to earn any particular amount (say $50), if it requires 30 days through Infolinks, then it will approximately require 300-600 days (1-2 years) through Kontera…
The 10-20 times difference has been observed by me, if you read reviews across different blogs and forums, different bloggers have reported that Infolinks has 4-5 times to 20-40 times better eCPM than Kontera.
Now one problem that I have been facing in Infolinks, is that the ads are highly irrelevant to the linked text. The problem is due to lack of advertisers in the network. I think with increasing popularity this may be easily solved, already the traffic details from Alexa, shows a rapid increase in Infolinks as compared to Kontera:
Statistics from Alexa for Infolinks
Statistics from Alexa for Kontera
Update: Infolinks has clearly overtaken Kontera as per the statistics from Alexa, see the screenshot below
One more problem that I have found in both of them, is that the ads are opened in the same window, which actually takes away our visitors, so i will be writing to them regarding this issue, and it would be a great help for me if you do the same too.
Bottom line: Out of Kontera and Infolinks, I would advice you to join Infolinks to earn better.
Other than these two, there’s another advertising agency – VibrantMedia, but it’s first qualification requirement says:
Your website must receive a minimum of 500,000 page views (per month) to qualify for Vibrant In-Text Advertising
I hope I would soon be able to try this out 🙂