Yuck it up with the Canucks and their Pucks
Canucks tickets for the really good games are harder to find than a needle in a haystack. That's why it doesn't hurt to check Admission.com, but I never really count on this as a source for hockey tickets. They sell out too fast.
A ticket site that never seems to sell out (how do they do it?) is TicketLiquidator.com. They have tickets to every single game, and you can choose exactly where you want to sit, right down to the seat number. They also have very good customer service and are fast and easy to deal with.
E-Bay
I've also shopped on Ebay a couple of times for tickets. They have an alright selection. It always seems like the prices are really good, but by the time you bid high enough to actually get them, it usually ends up that you would have saved money just buying from a broker.