Here is the report from Doncaster written by 'Ffwtbol' an excellent blog on Welsh football and Cardiff City in particular.
http://ffwtbol.co.uk/2012/01/15/doncaster-rovers-0-0-cardiff-city/
Another prolific writer but with a random edge is Ben Dudley.
Check out his thoughts from the Keepmoat.
http://myonlycardiff.com/2012/01/15/doncaster-rovers-0-cardiff-city-0-440-miles-for-not-very-much/
