here -- about the relationship of Facebook to Oculus Rift, via Facebook's principal Mark Zuckerberg. It also goes into the possibilities for funding of both Oculus Rift and a major competitor, Magic Leap.
Nothing much about Second Life, but you can bet if Facebook places a big stack of chips on Oculus Rift, things will happen. I don't think it's time yet to commit to one technology or the other, but this will be useful background information within a year, I think. Enjoy.