General question, help much appreciated and needed

I've seen a lot of criticism for certain online books, I have two questions:
What're the best books for playing poker online?
(I'm a good player live but online I'm only a moderate winner at 33$ SitNgos or 1/2$ limit or.5/1$ NL)

Are there any books that talk about Single table Sit N GOs?
There's a lot of books on multi table tournaments like harrington on hold em but the final table section doesn't offer enough help for playing SitNGos usually since most ppl at SnGs don't get paid.
Thanks

We should petition Sklansky and Mason to write a SnG book for single tables,who's with me ?? [img]/images/graemlins/grin.gif[/img] [img]/images/graemlins/tongue.gif[/img]