Oxymoron said:
Liberal + Conservative + Bloc + NDP = 2
?
Bloc and NDP only cried foul on issues that they had a lot of opinion in. The Reform and now CPC cry foul on pretty much EVERYTHING the Liberals do. Martin ate beef that possibly wasn't from Alber-OFF WITH HIS HEAD!
Also in many ridings there are only Liberal and Conservative candidates. You won't find many Bloc candidates in Western or Northern Canada. The same applies to NDP, especially in the more rural areas.
Though there's no question that now since the last election and the fact that the Liberals don't have a majority...that these parties are significant and have to be a lot louder voicing their opinions even on the smallest of issues, because it actually makes a difference (whereas prior the Liberals could do whatever they want and it didn't matter what you said).