For example, they completely missed Dave McClure (1651 feedburner subscribers, 135,290 Alexa Rank) and Mark Cuban (44,839 Alexa).
The author also doesn't explain if he's compiling blogs FOR angels vs blogs ABOUT angel investing - it looks like he includes both.
You see that behavior quite a bit on this board. Even at AngelConf, which was supposed to be for current and aspiring angels to connect, there were a bunch of guys asking for money.
That aside, it looks like the list was compiled by Googling "angel blog". That's exactly the wrong way to go about it.
Soon enough I think people will see the benefits of being visible and having good deals come to you, like Fred and AVC....
Besides, what's the likelihood you'd invest in a random person that comments on your blog? I'd trust that person only slightly more than I would a Nigerian scammer.