I think it is much smarter to work to have let's say 50000 visitors per month to a site that you indisputably own than working like a slave to get millions of members in a social network group that Facebook can take away anytime. You are working with someone else's property, and they can confiscate it anytime.
As for the domains... Don't squat the typos / names of large corporations expecting to keep them after they decide to take action. USe them for a while, if they are worth, deploying all privacy / offshore shields; then drop them once caught (or once the C&D threats are intense and credible).
Another piece of advice: don't be a mega-loser registering typos / trademarks with GoDaddy (AKA the glorious hero and faithful ally of trademark holders): in fact goDaddy "privacy shield" contract includes a whopping 30 USD compulsory billing for you as domain owner, when a trademark infringment (eg a C&D letter) is filed against you. It doesn't matter what happens; you will be billed just for receiving a C&D letter while with privacy on.
In other words: I send a fake mail that seems real & credible about infringment to the domainByProxy protected whois contact mail of a godaddy domain owner, and he gets billed 30 USD (tested with a friend). They claim it is for "administrative fees". In reality it is a punitive action if you used their system for shady registrations.
However, I will pay 30 USD myself to someone who can
disclose to me, with proper evidence, the identity
of the owner of Facebok.com (unless it is FB itself).