Lesson 7: Online Platform as tool for ICT Content and Development In this lesson I've learned about the purposes of online platforms and applications. O n how to apply web design principles and elements using online creation tools, platforms and application and to create a web page design using templates and online platforms. And also from this lesson I've learned the difference between the two platforms. In social media platforms like facebook and twitter , you can only post a status about a topic or a headline only but in blogging platforms is where you can explain the topic more in-depth than the social media platforms.