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Another word that I should have mentioned would be “Subscribe”

So basically, I’d like a button on each of my blogs that say “Subscribe” to this blog, and then when they click that, it will show up in their profiles, which blogs they are subscribed to?

Please help.

Just like on youtube, where you subscribe to a channel, and it shows a count of how many people are subscribed, and then in your profile it says what you are subscribed to.

Thanks.