We've had a few people asking about this actually and I'm happy you are one of them too. There are NGOs which you can get involved with depending on how much time you'd like give to the cause and with whom/what you'd like to work with (people, animals, environment etc).
Regarding the closed article, I can get you in touch with Khairah if you wanted to.
Over the next few months, Clever Dodo will be changing its Q&A platform to allow like-minded individuals to create groups and come together to discuss topics of interest to them and organise events (eg Charity Group organising an event to go help an elderly people or children in need). If you would like to be notified when we are ready to accept new members, please let me know.