YY () is a major Chinese video-based social network with over 300 million users. It features a virtual currency which users can earn through activities such as karaoke or creating tutorial videos, then convert to real cash.

Evolution of neuropeptide Y, peptide YY and pancreatic polypeptide
Inhibition of Food Intake in Obese Subjects by Peptide YY
Inhibition of Food Intake in Obese Subjects by Peptide YY
Inhibition of Food Intake in Obese Subjects by Peptide YY
Inhibition of Food Intake in Obese Subjects by Peptide YY
Inhibition of Food Intake in Obese Subjects by Peptide YY
Isolation and characterization of peptide YY (PYY), a candidate gut hormone that inhibits pancreatic exocrine secretion.
Isolation of a candidate repressor/activator, NF-E1 (YY-1, delta), that binds to the immunoglobulin kappa 3' enhancer and the immuno...
Weight loss, appetite suppression, and changes in fasting and postprandial ghrelin and peptide-YY levels after Roux-en-Y gastric byp...
Pearson TA, Mensah GA, Alexander RW, Anderson JL, Cannon RO, Criqui M, Fadl YY, Fortmann SP, Hong Y, Myers GL, Rifai N, Smith SC, Ta...