Which of the items below are worth mentioning in my admission documents?

I really worried about what should I write in my admission documents, such as resume/CV, statement of purpose, informal email communications with professors. From the list below, please tell me what items have enough academic value to be mentioned in such documents?

Note that its a application in PhD program in computer science for US universities

• Stack Overflow (generally Stack Exchange) reputation and badges


• Coursera accomplished courses


• Small-scaled programming projects (absolutely with no academic value)


• Github programming repositories