Buy Car Insurance Online, Auto Insurance Price Quotes, Consolidate Graduate Student Loans : Some of the Most Expensive Adwords Keywords!

Online marketers and Adsense publishers, listen up!

WordStream has recently published a list of the most expensive Adwords keywords as of July 2011.

97% of Google's revenue comes from Adwords or advertising on blogs and websites. Just to give you an idea of how much Google earns from this program, during the last four quarters (that's from Q3 2010 to Q2 2011), the company's total advertising revenue amounted to a whopping $32.2 billion!

Here are some of the keywords in 20 categories that proved to be true money-makers for Google:

1. Insurance ("auto insurance price quotes", "buy car insurance online") - 24 percent of keywords; top Cost Per Click of $54.91

2. Loans ("cheapest homeowner loans", "consolidate graduate student loans") - 12.8 percent of keywords; top Cost Per Click of $44.28

3. Mortgage ("remortgage with bad credit", "refinanced second mortgages") - 9 percent of keywords; top Cost Per Click of $47.12

4. Attorney ("dui defense attorney", "personal injury attorney") - 3.6 percent of keywords; top Cost per Click of $47.07

5. Credit ("bad credit home buyer", "home equity line of credit") - 3.2 percent of keywords, top Cost per Click of $36.06

6. Lawyer ("criminal defense lawyer", "personal injury lawyer") - 3 percent of keywords; top Cost per Click of $42.51

7. Donate ("donating a used car", "car donation centers") - 2.5 percent of keywords; top Cost per click of $42.02

8. Degree ("psychology bachelors degree online", "criminal justice degrees online" ); 2.2 percent of keywords; top Cost per Click of $40.61

9. Hosting ("managed web hosting solution", "hosting ms exchange") - 2.2 percent of keywords; top Cost per Click of $31.91

10. Claim ("accident claims no win no fee", "personal injury claim") - 1.4 percent of keywords; top Cost per Click of $45.51

11. Conference Call ("conference calls toll free", "best conference call service") - 0.9 percent of keywords; top Cost per Click of $42.05

12. Trading ("stock trades online", "cheap online trading") - 0.8 percent percent of keywords; top Cost per Click of $33.19

13. Software ("help desk software cheap", "crm software programs") - 0.8 percent of keywords; top Cost per Click of $35.29

14. Recovery ("hard drive recovery laptop", "raid server data recovery") - 0.7 percent of keywords; top Cost per Click of $42.03

15. Transfer ("credit card balance transfer zero interest", "zero apr balance transfer"); 0.6 percent of keywords; top Cost per Click of $29.86

16. Gas/Electricity ("switch gas and electricity suppliers", "business electricity price comparison") - 0.6 percent of keywords; top Cost per Click of $54.62

17. Classes ("criminal justice online classes," "online classes business administration") - 0.5 percent of keywords; top Cost per Click of $35.04

18. Rehab ("crack rehab centers", "alcohol rehab centers") - 0.5 percent of keywords; top Cost per Click of $33.59

19. Treatment ("drug treatment centers", "mesothelioma treatment options") - 0.4 percent of keywords; top Cost per Click of $37.18

20. Cord Blood ("store umbilical cord blood", "cordblood bank") - 0.4 percent of keywords; top Cost per Click of $27.80

Notice that the most expensive keyword categories represent businesses with high lifetime customer value (e.g. lawsuits, server applications) – as these industries can afford to pay a lot to acquire a new customer.

What does this list mean to Adsense Publishers?

Well, if you're the type of Publisher who just wants to make a lot of money from writing, it would make sense to publish articles about these high-paying keywords. Then again, remember that competition is extremely tight in these categories -- and if money is your only motivation or if you're not passionate at all about these topics, you might lose your interest in writing way before you actually make money from it.

What does this list mean to Online Marketers?

If your industry falls in any of these categories, at least, you'd know what to expect should you want to launch an online ad campaign. Remember that there are various techniques that you can use to compete in a high-volume, high Cost per Click category - such as being more target specific, optimizing landing pages and using negative keywords, among others - to get the most out of your investment.