there's tons of them. no hating here but just google like finance/investing blog and you will get a shit load of them. i go on curbed.com which is NYC commercial real estate one.
I don't know of any good forums but the Wall Street Journal is pretty helpful if you get it. And if you have a stock broker they'll give you good advice, but it's definitely not free. Also on E-trade there are really good articles and I think you don't even have to be a member to read them. That was all pretty basic and you probably know all that already but good luck finding something helpful