Is PPC An SEM?

Related questions

1. What is the difference between SEM and PPC?
2. How much do Google ads pay?
3. Is Facebook a PPC?
4. Why is PPC important?
5. Can I advertise on Google for free?
6. Which one is better SEO or SEM?
7. Can you pay Google for SEO?
8. Is SEO better than AdWords?
9. How effective is PPC?
10. Is AdWords a PPC?

Tags

1. #often
2. #engine
3. #referring
4. #optimization
5. #purchased
6. #advertising
7. #engines
8. #search
9. #whereas
10. #which
11. #related
12. #click
13. #results
14. #organic
15. #marketing
16. #format
17. #stands