Welcome to ISC, you can post in all the sections of this site like :-
1. Forum - to express your views on the threads raised by members, as well you can also raise a thread related to any information but this site is an education based, hence try to create your own threads in this path.
2. Ask expert section - you can give your expert suggestions on the queries of other members and at the same time contribute to new queries.
3. Resource section- you can choose a topic related to education and express in your own words to gain better.
The one important aspect is, you should write using your own words, copied contents are not allowed here. You have to use complete words to write, no short forms are accepted.
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