The people behind WordStream, Inc., had recently made a study on what keywords are making a big profit to Google through their Adwords for Q2 2011, Below graph shows the ranking of different keywords.Graph shows the
most expensive keywords niche due to demand , and competition in terms of high search volume.
The graph could give an idea on what niche should be blog, in order to get a high CPC.
But for sure competition is really high on this top 20 niche.
Try to optimize an insurance keywords and you can see the different competitors in the SERP. But there is always long tail keywords that has low or no competition at all.
The 20 most expensive keyword categories with the highest search volume and highest costs per click, thereby netting Google the most money, are:
- Conference Call
- Cord Blood
Check for more information’s at their site