Well, mainly tech info. As my friends know and acquaintances suspect, I'm a bit of a 'geek' [love my Macs & iPhone]. For that reason, I get the Twitter feed for Mashable.com, a great resource.
Then I thought I'd check into options for 'to do' lists and just did a google search on that. I found another site that might be of interest and it deals with uses of Linux, Windows and Mac. It's MakeUseOf and it has loads of downloadable pdfs on tech topics [you can check out which ones free anyway at the site and if you're interested, you can register for free access].
Both useful sites to check into all-things-tech. I'm sure there are many others, but here's a start.