I like to think about others peoples problems to improve myself. So I will go for the conversational part as well as Mark.
Mainly because I'm interested in others people opinions and approaches as well as Ideas
for hard facts I prefer stackoverflow.com, crypto.stackexchange.com, serverfault.com as wells as the manuals. But they don't challenge my mind in the way a different perspective does. I esp. appreciate opinions opposing mine.
And besides I'm a smartass ... I enjoy answering questions anyways.