Where do you get your info from?

For Exchange, I use SearchExchange (all the techtarget sites are good) and for systems management, I use MyITForum 

Back in the old days, when I was doing production NT support, John Savilles NTFAQ was an essential site but it seems a bit shallow nowadays

Only4Gurus is an excellent site as a one stop shop for links to all the white papers you'll ever need

To be honest, i probably find out just as much via my RSS feeds as i do from these sites and i almost never pick up a print media magazine - that's so 20th century ;)