[sireat]

Mark Cuban is actually a rare example of someone who bootstrapped from smaller successful businesses into larger ones.

His success with Microsolutions led him towards creating AudioNet -> Broadcast.com .

Sure, he benefited from nice timing, but also he was quite smart about protecting his windfall(that infamous Yahoo collar trade:http://investmentxyz.blogspot.com/2006/05/cubans-collar-anat...).

I really can't speak about his activities since 2000, but most of it has seemed quite sane and sensible.