Why we use seo with our web? I think all of us want our web is the number one on the search engines.But is it good? Yes, it could have high traffic,and you can earn more money . But did you think is it have any disadvantage? 1. There will be more people copying your content. 2. There will be competitors trying to use various methods trap you. 3. Will attract the attention of search engines, will be artificially blocked your site. 4. Some people will be on your optimization technology, and then imitate you, kill you. So we could not cling to the number,we'd better abundance our content,only we do that,though we have no good number on search engine,we also could earn more money online.