Taiwan's online business platform mainly includes the following:

1. Yahoo! Taiwan: Yahoo! Taiwan is a large portal website in Taiwan, formed by the merger of Yahoo Taiwan and Taiwan. On the Yahoo! Taiwan platform, users can conduct shopping, auctions, forums and other activities.

2. Ruten Auction: Ruten Auction is a well-known online auction platform in Taiwan, providing a variety of goods and services, including home furnishings, life, digital, sports, etc.

3. Shopee Shopping: Shopee Shopping is an e-commerce platform headquartered in Singapore. After entering the Taiwanese market, it quickly gained widespread attention and users. On Shopee Shopping, users can buy various goods, such as home furnishings, clothing, digital, etc.

4. Taobao Taiwan: Taobao Taiwan is an e-commerce platform launched by Alibaba Group in Taiwan, providing a variety of goods and services. However, according to relevant reports, Taobao Taiwan has gradually closed the platform's front-end functions in 2020, and currently only retains some services until 2023.

5. Other platforms: In addition, there are many other e-commerce platforms that have a certain share in the Taiwanese market, such as PChome, momo shopping, and ETtoday shopping.

These platforms cover a wide range of goods and services, providing a wealth of choices for online shoppers in Taiwan. At the same time, with the development of cross-border e-commerce, Taiwanese consumers can also purchase international goods through platforms such as Global Shopping.