I want to make a computer in world that you can access a select number of websites (like Twitter, Wikipedia, etc.) to read or post tweets (like screenshots) from inside VrChat. Is this possible?
Nope, due to security issues, the only outside web links you’re allowed to load are through the video player.
If you want specific websites, it’s always an option to screenshot them and have them visible that way, though of course it will not update automatically.