Thanks everyone for commenting on my chapter here.  

I looked at all 13...Qc7 lines very seriously, but in the end it was necessary to make a (hard) choice between 14.Bc4 and 14.Qc5 (well, and also 14.g3!?).

So, most of 14.Bc4 stuff was simply not included. After 14.Bc4 e5!? (I think that the main line is still 14...Nb6 which is passive but does not create weaknesses, but, well, 14...e5 is also playable at some extent) 15.Qd2, I decided that 15...Be6 16. Ne4 Rad8!? is Black's relatively best. The main deviations are: 15...Rd8 and 16...Rab8.

After 15.Qd2 Rd8 (the move, which was suggested above in this Forum), some lines are: 16.Qh6!? Be6 (16...Nxc3?! 17.Bxf7+!; 16...Bf5?! 17.g4! Nxc3? 18.gxf5 +-) 17.Ne4 Qe7 18.h4 (with White's initiative) 18...Qf8 (18...Bf5 19.h5 Qf8 20.Qg5; 18...f6 19.h5!) 19.Qg5!? (a calmer alternative is 19.Qxf8+ Kxf8 20.Nc5 Ke7 +/= 21.Rhe1!? f6 22.Nxe6 Kxe6 23.f4) 19...f5 20.Bxd5 Bxd5 (20...cxd5 21.Nf6+! Kg7 22.Nh5+ Kh8 23.Ng3 - Voicu) 21.Nf6+!? Kg7 22.Nxh7!? Kxh7 23.h5 with an attack.

It all was NOT included in the book. (The line with 19.Qg5/22.Nxh7!? is quite complex, as I remember.)
One way or another, 14...e5!? is a curious possibility, which creates additional troubles for White's preparation.  ???

In the Book "experts vs. the sicilian" Golubev writes:

14. Qc5
I cannot expect that every reader will have time to study two or more complex directions in full detail. So this move, as a result of a hard and uncertain choice, is my main recommendation for white. 14.Bc4, twice used by Shirov against Fererov, is no weaker but more complex. then 14...Nb6 is blacks most popular move, when White can fight for the initiative in various ways. Shirov played 15.Be2!? (15.Bb3 c5!), trying to underline the drawbacks of Blacks passive knight retreat. Alternatively, White can allow ...Nxc4, because such an exchange cannot be called a strategic achievement for black. Instead of 14...Nb6, Black can play actively with 14..e5!? 15.Qd2 (after Qc5?! Nxc3 16.Qxc3 is no longer possible) 15...Be6. Here 16. Ne4 Tad8!? (after 16...Rab8 17.h4 Black has more problems) 17.Nc5!? looks slightly better for white
Whites reasonable options also include the rare moves 14.h4 and 14.g3

and then he continues with his main line. Maybe not what you have expected but it is still a great book, you should buy it!!!!

PS: it is realy a graet book!!!!

Unfortunately Collins doesn't answer your question!  He gives 15...Nb6 16 Bb3! with ideas of Qh6 and Ne4.

He also gives 15...Nxc3 16 Qxc3 as clearly better for white

A key game in this line is one played by the Irish player Sam Collins at the 2002 Olympiad.  After 14...e5?! (His annotation) 15 Qd2 he gave some convincing analysis.

I'll try and dig it out

I like 18...Bf5!?, after 19.Rhd1 (Black gets very good play if White takes the c-pawn) 19...Rab8 20.h4 and now 20...Qb6!? (although maybe other moves are good that keep more life in the position) looks sufficient. 21.Qxb6 Rxb6 =.

I looked again at Fritz's 17.Rd6 move.  After 17...exf3 18.gxf3 I still am not finding a good way to continue as Black.  White usually follows up with a quick Rhd1 and seems to have a bind on the position.  Also you mention 14...Nb6 is the old book move.  Has this been abandoned?  I looked at the games on chessbase.com which didn't always look so good for Black but once again Fritz seemed to find some good solutions for Black.

In line "b" is there anything to 17.Rd6?  Fritz seems to like this move.  Also, after 14.Bc4, has 14...Nb6!? been looked at?