Subject: How does one join a guild?
Username: Finiraldi

Unfortunately, you started playing this game a tad bit too late and missed your chance. There were guilds a little while back, and they functioned similar to how R:2 handle them. But for whatever reason, CC Corp chose to abandon and disable the system when it didn't get the kind of activity and results they wanted. Unless something happens to make them reconsider, I doubt they'll bring it back. They even went so far as to refund the start-up fees to all the existing guildmasters. An attempt to placate us and to tie up loose ends left behind what was deemed to be failed gameplay feature.

I suppose that doesn't stop you or anyone else from starting something like that in an unofficial capacity, though... R:1 had groups that did that. I wouldn't be surprised if there are people doing so in R:Fusion, too.

As for networking... I'd say the best approach to go with will vary from person to person, but generally, just go to the most visited social venues in the game's Root Towns and engage with quests with new people as much as possible, since those require groups to complete anyway. You'll find like-minded individuals eventually.