In articles / stories, you can post something that you are working on, your learnings, your views or your updates.
Ask a question as a qrious, not as an article.
In an event or a meetup, you can post social gatherings.
You know what to post in a job. However, you can post internships, fellowships, part-time or full-time jobs. Details can be filled while posting the job.
Post educational content (educational links, regional or online classes, free or paid educational seminars, webinars, courses) under education.
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