Because it makes available a huge amount of information in as logical a way as I can imagine (including one of the few useful site maps I have seen), it's also an example of good web design.
(it; makes; available) (I; can imagine; ) (the few useful site maps; have seen; I) (it; 's also; an example of good web design)
it I the few useful site maps it
makes can imagine have seen 's also
available
I
an example of good web design