The top twenty keyword categories that demanded the highest costs per click are:
1. Insurance (example keyword: “auto insurance price quotes”)
2. Loans (example keyword: “consolidate graduate student loans”)
3. Mortgage (example keyword: “refinanced second mortgages”)
4. Attorney (example keyword: “personal injury attorney”)
5. Credit (example keyword: “home equity line of credit”)
6. Lawyer
7. Donate
8. Degree
9. Hosting
10. Claim
11. Conference Call
12. Trading
13. Software
14. Recovery
15. Transfer
16. Gas/Electricity
17. Classes
18. Rehab
19. Treatment
20. Cord Blood
via techcrunch.com
"Donate" (folks paying a lot to get donations) and "Conference Call" (collaboration is huge) are interesting appearances on the list.
Oh and "cord blood."
