Before joining the Orthodox Church I actually looked up that one a lot (the view on birth control and contraception).
The OCA site stands in contradiction to a lot of published official materials from the various churches.
A difference between the Orthodox and the Catholics is that there isn't one top down canon, there's several different self governing churches (Antiochian, Greek, OCA, ROCOR, Moscow Patriarchiate, etc). On issues like this there are gaps, and further within those churches there are the occasional lapses in clarity which lead to some otherwise knowledgable folks misinforming others about the doctrine, it's why I linked to a bunch of sites. You find the same thing betwen dioceases in the Catholic church.
I have seen both the "tolerated in some situations within marriage but consult your priest first" and the "absolutley wrong never do it".
There's a rather exhaustive look at the debate here:
http://ic.net/~erasmus/RAZ162.HTM
I do not suspect this is entirely undebated within Catholic circles either. (After all there are even bishops defending openly gay clergy)
And here's some Catholic bishops who do as much:
http://allafrica.com/stories/200511141386.html
http://www.democratandchronicle.com/apps/pbcs.dll/article?AID=/20051115/NEWS01/511150330/1002/NEWS
I suspect if you asked anyone in a ROCOR parish they'd be 100% against contraception in any circumstances. (These are folks afterall who have a sign on the parish door reminding folks that women should cover their head in church).
"I do not suspect this is entirely undebated within Catholic circles either. (After all there are even bishops defending openly gay clergy) "
Regardless of the opinions of some members of the clergy, even bishops, I have an objective and unchanging standard against which to measure all doctrine. In contrast, however, there appears to be little in the way of such objective standards within Orthodox Christianity.
So, even though it may be far from undebated within Catholic circles, everyone knows precisely the official stand of the Church on matters like these. I haven't found the same clarity in my research of Orthodoxy.