There is a pretty nice interview with Damon Lindelof over at Wizard Universe.
In the interview, Damon talks about the first part of Season 3, explains a bit about Nikki and Paulo as well as The Others and hints at what we can expect from the second half of the season.
WIZARD: The first six-episode mini-season is over. Did you guys accomplish what you set out to accomplish with it?
LINDELOF: I think that in many ways, yes, and in many ways we wish that we couldâ€™ve done more. Our Ã¼ber-goal in the first six episodes was to really begin to set up the mega-story of the season, which is who the Others are and what they want and why they took Kate [Evangeline Lilly], Jack [Matthew Fox] and Sawyer [Josh Holloway]. I think that we at least answered the third question. We feel that we told that story fairly compellingly and well.
The interview is a bit revealing, but I don’t think Damon would reveal anything crucial so don’t worry about major spoilers.