Aspirants can effectively use online resources for UPSC preparation by accessing a variety of platforms catering to different needs. Websites offering online courses, video lectures, and webinars can enhance understanding of complex subjects. Social media platforms and forums provide opportunities for peer discussions and sharing study materials. Moreover, aspirants can follow online news portals to stay updated on current affairs relevant to the exam. However, it's crucial to maintain a balance and not get overwhelmed by the sheer volume of available resources. Selecting trustworthy sources ensures efficient learning and maximizes preparation time.