ข้อดี : ประหยัดค่าใช้จ่าย เหมาะกับผู้ประกอบการรายย่อย Further Than that, you want to know if enough people are hunting for anything to really make it value your time to build content, And the way difficult it might be to actually rank for the people key phrases. Search engine optimization reporting tends to make waiting for link from Social Network Posts (23)