1. patientslikeme.com
Patientslikeme is a patientCommunityPlatform. Here, users can share their medical records and find patients with similar symptoms to improve the medical effect. About 70 thousand patients shared their medical records here.
2. flattr.com
This is a small donation service, which is similar to Facebook's "like" button: you can deploy the "flattred" donation button in the relevantArticleSide. If the reader wishes
Click this button to make a donation. After PayPal, MasterCard, and other financial institutions have frozen the donation channel for Wikipedia, the Swedish service has become an important source of funding for Wikipedia.
Wikipedia has contributed more than 3500 donations.
3. groupon.com
Groupon will launch a group buying transaction every day. When the number of buyers reaches the minimum limit, it will take effect. With this unique model, Groupon has become the fastest growing company ever and has attracted hundreds of counterfeits around the world.
The first one gave me great inspiration. The current Internet connection is really an infinite opportunity. If you have a good idea, you may wish to make a website and share some of your own insights, maybe it will become a successful website.