Dear Dilipji ,
For the sake of presentation , I did minor editing in ur toc , I hope u don't mind . If it goes against ur scheme please revert the changes .
I noticed another thing , which I can't help saying : the heading of ur subsections is better and seemed more appropriate than what u 've listed in ur toc , eg What is the difference between .../Difference b/w...(sub section 2.1)
I really liked ur idea of internal link to ur user page , I 'll copy this idea of urs.
All the Best !
with regards , neetu