Lifehacker is one of those web sites that has so much stuff you don't know where to start.
Lifehacker features tips, shortcuts, downloads, and information to help you get things done smarter and more efficiently. Lifehacker has won many awards and accolades and I always find good ideas or resources on the site.
Software, web sites, products, tips and tricks, and other ideas are published each day (sometimes more than 20 articles per day). They range from web browser extensions, to how to maintain a computer, to how to best grill a steak to fixing things at home, and more. Chances are if you have a question, they have an answer.
I highly recommend subscribing to Lifehacker and browsing the site. There are always new jewels to be found.