A key question we should all ask when getting information from the Internet (or indeed, anywhere) is how reliable is the source of the information? I think that the information I get and use in making my judgments is pretty good, but think it would be of value to share with you the locations at which I get most of my information, so you can see and judge for yourselves.
In terms of local information, I get my news from one of our local papers, the Cedar Rapids Gazette. They are maintaining a site specifically for the caucuses, called Iowa Caucuses. That primarily covers the local news. I should add that I was one of about 30 people who took part in a couple of discussion sessions with editors and reporters from the Gazette last week on the topic of the caucuses. The session I went to was very interesting, with a wide diversity of interests and a very broad political representation in the room. I would say that maybe 5 of the fifteen folk had firmly made up their minds to back a particular candidate, while the rest of us, myself included, were firmly undecided!
Going further afield, I have a number of sites I visit fairly regularly. The first of these is the site maintained by Professor Glenn Reynolds - Instapundit.com Next up on my daily visit list is Captain's Quarters, run by Ed Morrissey. In addition to providing excellent commentary, he also has the wonderful "Day by Day" cartoon by Chris Muir. I also regularly check a couple of blogs at the National Review Online. The first, the Campaign Spot, is run by Jim Geraghty, and includes all news related to the campaigns. The second is the Corner, which includes a veritable host of posters, including such notables as Mark Steyn and Jonah Goldberg. There are others that I visit, but these make up the ones I visit most every day. Hope this is of help.