If you have a link for that information, I would be grateful.
I have a link for 2004 but not 2008, and would like further links so hopefully others can provide more.
http://la.indymedia.org/news/2003/04/47530.php
EDIT: I found some links for corporate contributions. You would need to research the corporations to determine if they own media. I see a few corporations known to own TV networks and newspapers (e.g., the ones easily identified by name Microsoft, Time Warner), but that is only from a cursory review.
Obama: http://www.opensecrets.org/pres08/contrib.asp?id=N00009638&cycle=2008
Clinton: http://www.opensecrets.org/pres08/contrib.asp?id=N00000019&cycle=2008
McCain: http://www.opensecrets.org/pres08/contrib.asp?id=N00006424&cycle=2008
I notice something that speaks to matters I have mentioned repetitively on this board. Do you notice how all of the big financial power players back ALL of the leading candidates. Very telling. Do you also notice how they do not support Ron Paul:
http://www.opensecrets.org/pres08/contrib.asp?id=N00005906&cycle=2008
Ron Paul has a plan to put control of the financial system back into the hands of the government. The media doesn’t report that to any deserving degree.