...you won't find any here. Sorry. There are so many great Lost fan sites which feature spoilers, but I happen to enjoy watching every new episode with absolutely no idea who's guest starring, what the plot involves, etc. ahead of time.
If you are a spoiler hunter, I encourage you to visit and bookmark any of the blogs which are listed on this site on the right side under Quid Pro Quo, especially DarkUFO, DocArzt and TheODI.