Google, Facebook, Twitter if you want and others are pioneers of this era,
I think they have also money to invest in research, in fact they hire the
very talented people.
I think it is part of the game trial&error, and honestly I dont see many
alternatives to MySQL,
especially when they started. Th
http://developers.slashdot.org/story/11/07/09/1256241/Facebook-Trapped-In-My
SQL-a-Fate-Worse-Than-Death
"According to database pioneer Michael Stonebraker, Facebook is operating a
huge, complex MySQL implementation equivalent to 'a fate worse than death,'
and the only way out is 'bite the bullet
