Dan Hill explains why Why Lost is genuinely new media.
What Lost has done is far beyond that, truly raising the bar for much mainstream media. Again, it's ever clearer - frankly it was at the time - that all those late-90s Flash experiences, grown out of early-90s CD-ROM experiments, were largely facile attempts at 'new media experiences'. Lost is a far more ambitious piece of media, which uses the entire web as its canvas and its entire audience as its creators. I'd suggest this piece of work - Lost, when viewed in its entirety - is truly new.
There are frequent references throughout the post to Steven Johnson "Everything Bad is Good for You" and his article in the Times specifically about Lost. This is a facinating insight into how traditional and new media are merging to create a something unique.