Here are some of the blogs that I love and read regularly and I think you might find interesting. You may disagree. Note that these are all on the political right or centre (see below for left)
The Belmont Club - mostly US politics but I often have a look
GoG - grumpy old geezers normally have something good to read
Half Done - interesting topics and well written
The Hive - NZ politics in Wellington mostly, good for keeping up
Keeping Stock - mostly political, well written
Kiwiblog - lots of posts, well written and interesting, I read this every day
Liberty Scott - pretty vehement and entertaining style
Anti-Dismal - a great read for those interested in economics applied to the real world
No Minister - good choice of topics and readable style
Not PC - pretty vehement, interesting, Ayn Rand fan
NZ Conservative - well written and well argued, sometimes religious
Poneke (may be centre but I don't think it is left) - a good writer who loves public transport
Power Line - lots of well written posts, mostly on US politics, but worth keeping up with
Tim Blair - makes amazing connections, often finds people out
Whale Oil - lots of posts, generally pretty angry and entertaining, Harsh but fair! I read this every day
I also read some left blogs which you might find interesting. Don't make the mistake of only reading what you agree with, it makes for a boring life. Having said that, as you can see I don't read as many.
Daily Kos - some good posts, has a reputation for lunacy, but that is mainly the comments and you get that anywhere
Frog Blog - the true green environmentalists, get your fix here
Michael Moore - out there. He is famous for Stupid White Men and movies like Roger & Me
The Standard - I think this is the Labour party, not sure. Well worth a read for the POV put forward. Always has the spin / talking points from the other side when Labourn is on the back foot over something