Newbie question on BTC spread

[kenw232]

Is this normal on all exchanges?  Buying or selling bitcoins seem to have this massive spread from what I see.
eg. https://www.canadianbitcoins.com/login.php

There is like a $630 difference between buying & selling BTC.  is this standard everywhere?

[RoommateAgreement]

you can easily check any of the other exchanges and see for yourself but no it is not normal.
when such a spread exists in an exchange that means either that exchange is scam or it is a dead place that has no users to trade there so the prices stay like this with a big spread.

otherwise in all other exchanges things will come to equilibrium with each other.