I can't speak for those other blogs but at ReadWriteWeb (the most fabulous blog on the internet, if you ask me) we did some polling and ran this post on pay rates 3 years ago http://www.readwriteweb.com/archives/how_much_do_top_tier_bl... To be honest, given the economy, I doubt things have changed that much since then.
I cannot disclose RWW's rate of pay but as I said in that post, the higher you go in that continuum, the more likely you are to be a consultant vs a journalist. And we are journalists ;)
If you can tell us, how much does RWW pay? And yes, it's one of the most fabulous blogs on the Internet.
PS: thank you.