Quote from the1:
http://news.morningstar.com/etf/Lists/ETFReturns.html
Click on "show complete list" and then on Trading Volume to sort.
Quote from joe4422:
The master data list includes some that don't trade anymore or are being winded down.
I think the best thing is to stick with the
proshares.com
ishares.com
spdrs.com
Those are all the main ETFs and include every sector, currency, bond ETFs etc....
They'll have everything you could want there.