Tiger Woods still a valuable Nike billboard

Tiger Woods has lost some sponsors. But, at least when he's contending in a tournament, he's still a valuable walking billboard.

Consider that Woods, during CBS' Masters coverage Sunday, drew what research firm Joyce Julius & Associates estimates to be $3.9 milion dollars worth of on-air exposure for his various Nike logos. By contrast, fellow Nike endorser and Masters winner Charl Schwartzel drew about $3.4 million worth of Nike exposure.

An indication of how much CBS paid attention to Woods: Its announcers mentioned him 105 times Sunday, while mentioning Schwartzel 90 times.