Yahoo. I used to use it for quotes. Now I've basically moved to Google Finance for quotes and basic financial information. At least Yahoo hasn't messed with their portfolio page. Their new message boards seem to have less traffic now too. I think management there is trying to get fired to collect their golden parachute money. This is why I like founders running the companies I invest in that have big stock positions with low compensation. They wouldn't even think of screwing up a good product like the old Yahoo Finance.