There's no question that there's a lot of good stuff on the web, and there's a lot of dross, too. Here's a short list of some of the blogs that have helped me to keep MY sanity. What are yours?
1.) Joe's Goals --This blog has a bunch of interesting perspective, tools, and inspirational reads.
2.) Eric Blue's Blog--(personal development section) great selection of "lifehacks" tips, tools, and some cool stuff on mindmapping.
3.) Deepak Chopra and Family--(on beliefnet blogs.) Say what you will about Chopra, he's got some great thoughts and useful advice for many of us.
4.) Advanced Life Skills--I think this guy has a lot of excellent points, some of which I haven't seen anywhere else.
5.) Roni's Weigh--for the many millions of us out here fighting the battle of the bulge. I've been lurking in Roni land for a long time now and even had a blog there at one point (she has a community of weight loss blogs.) This chick is the real deal, and makes a lot of sense. (has lots of useful hints)