Sorry if this is a repeat but is there an equivalent type of concept as a dark pool in other exchange sites like etrade?  I don't know if I like dark pools...

I don't know if etrade runs a dark pool but there are dark pools for probably everything traded on etrade.
The dark pool seems to be working very well. It is allowing people to place big orders closer to the market price. The result is greater depth, tighter spreads and less wild swings of the market.

Well. the market would have dropped to about .05 without darkpools.

For your info:

There seems to be a dark pool ASK order at MtGox around 0.25, which means for those folks who want to buy for 0.25 $, it is possible.