I discovered quite by accident that you can get a lot of quick traffic from CNN, especially if it's a "hot trend" type of thing.
If you have a blog, write about a topic that's really hot -- like the April Fool's virus. Cite some authoritative stuff from CNN and give them a link. They give you a trackback in the "what blogs are saying" section under the article.
I got over 190 visitors from CNN in just one day. More continue to come in.
I'm taking a look at other news media and will put together a list that gives trackbacks. Some of my blogs were getting traffic from news sites and I just wasn't paying attention. By capitalizing on what's hot and linking to current articles, I think this could be a huge boost to any blog. It sure was more effective than Digg, that's for sure.
I can confirm this.
Also Politico.com allows you, to post your blog links in comments.
A few British news outlets lets you post it as a live HTML link with keywords.