Lu Chao is among those who have received help.
The 23-year-old was diagnosed with leukemia earlier this year, and had been writing diary-style microblogs about her treatment under the nickname “Lu Ruoqing”.
Just as she was about to give up on her plans for a stem cell transplantation, due to the expected 400,000 yuan ($63,580) cost, an online celebrity reposted her microblogs, calling for help from others online.
Xue Manzi, a well-known investor started a fundraising program on Sina Weibo aimed at raising 1 million yuan for Lu, in cooperation with China Youth Development Foundation, a Beijing-based public foundation.
The target was reached in just three days, thanks to tens of thousands of warm-hearted supporters.
Lu is recovering well after a successful stem cell transplant surgery in Beijing in July.
Bei from Sina said the updated platform for micro-charities will encourage more micro-bloggers to participate in such philanthropy.