I think you nailed the ones I go to most (never been to Liquid Lounge) but I do consider these four very good and review them regularly.

Dividend Growth Investing
Mechanical Investing
METAR
BMW

I have rental property so I look at Real Estate Investing on occasion.

I assume you really consider Berkshire a broader board than a single stock -- because I do monitor other individual stocks like Markel, Fairfax, LUK, JNJ and others -- but agree that they aren't Berkshire.

There are other "fun" boards like Quicken, Best Travel, Bicyling, Building and Maintaining a Home, and Buying and Maintaining a Car.

bob