I think all these suggestions are the sites which deal in buying and selling bitcoins in usd, I was asking about the ones which deal in btc-altcoins and vice versa.
upss i thought that
for alt/BTC, i suggest you to use bittrex and cryptsy
i traded there for some time and everything went smoothly
poloniex is another nice exchange too
We usually think the most famous is the most trusted, but if an incident happened that often in there.
We should
Never keep a significant amount of coins on any exchange. They are infamous for disappearing overnight.
yeah we usually think like that
biggest exchange = trusted exchange
but everything changed since gox case
agree, exchanger just for trade, not for store bitcoin (and another valuable coins) there