network promotion at present, mainly in the following forms:
3, network advertisement
4, link exchange / advertising exchange
5, posted on B2B information or registration
7, other network promotion way
was reduced by $500-1000; the most valuable commodity Amazon sold proved to be its users. In recent years, the development of Amazon Co has been very rapid. Besides selling books, it has expanded to CD, software, toys and even decoration products such as cement. But the profits from selling them are not fat, or even lower than the profits of selling books.
brands use these tips; in July,