Study that focus on analysing the autonomous use of Internet resources by engineering students as a source of mathematical help-seeking for their lessons.It was used a qualitative method based on individual interviews and focal groups.The results show that students often turn to sites like YouTube, Facebook and Google to find mathematical help; particularly, they resort to these sites to clarify doubts and review topics covered in class, to find different ways to solve a problem, verify results, and to see task solutions explained step by step.The students report benefits of using these help sources such as access to almost unlimited information without time or geographical restrictions, but they also find limitations like access restrictions due to copyright, and the presence of elements that can get them away from the search focus because the wealth of information available and distractors such as social networks.The report concludes by pointing out some limitations of the study and possible paths for future research.