www.jstor.org This article is made Ross Harvey, the concept or idea that it want to transmit is a digital curation how to do it manual. The goal with this curation is to explain how to do digital curation. This is reliable becuase Ross Harvey is a reliable author, plus Jstore is an eductionla platform that only uploads reliable well written things.
In this post it talks about 15 Curation Tools for the Classroom it is made by TechEducator, he makes videos in youtube. It is reliable because it is a discussion between a lot of people who have reaserched about this topic.
This is a How-To-Do-It Manual by Ross Harvey. This is a reliable sourse because its made by a publisher and it puts diferent links of the chapters in wich it shows the manual. http://www.neal-schuman.com/nealschuman/companionwebsite/curation/