From 2002 until now, the domestic website alliance has gone through five years of development, and a lot of alliances such as search alliances, city alliances, advertising alliances, and industry alliances have emerged. The alliance businesses are developing towards multiple fields and becoming more mature.
No matter what kind of alliance form it is, the alliance group must be a community with common interests. Among them, the most representative one is the advertising alliance. Most domestic advertising alliances play the role of advertising intermediaries, "wholesaling" advertisements upstream and seeking advertising placement channels downstream. However, with the reorganization of the SP industry and the emergence of homogenization issues in both upstream and downstream sectors of the advertising alliances, the advertising alliances have entered a new stage of exploration.