1. Register on the Website as a Member (2 Sec. Process) - Click on Create Account on Top Right Corner of the page - Add your few Details - Account Created
2. Open your relevant section on the website as per your preference to post
3. Like, I'm Opening Introduction Section
4. Click on Start a New Topic under the Introduction Section
6. Then Click on Post the topic
Finally, your Topic will be posted.Hence you can post topic in any relevant section like technology, papers, study resources etc.
Any type of help you have required, you can freely post in replies/comments down.