Patrick Willis retirement came at right time for post-career pursuits
The Life And Career Of Patrick Willis (Story)
Patrick Willis, American Football Wiki
49ers' Patrick Willis isn't in the Hall of Fame and is too busy to care - ESPN - San Francisco 49ers Blog- ESPN
49ers: Patrick Willis offers retirement advice for Joe Staley
Patrick's Legacy - Niners Nation
NFLN: Patrick Willis Discusses Super Bowl L
Patrick Willis Announces His Retirement, Fulfills His Legacy - stack