Comics Cavern - Once a Tumblr site, then a Twitter feed, perhaps also a Buzzfeed page. Silent since 2012.
Blog @ MarkWaid.com - Mr. Waid can easily be found in multiple venues, primarily at Thrillbent (I think - it's been a couple years). Markwaid.com was hacked(?) in 2013, and abandoned(?).
Living Between Wednesdays - Now a regular podcast.
The Legion of Substitute Podcasters - Now a regular podcast, as well. I'm starting to see a trend.
Has Boobs, Reads Comics - Jill Pantozzi is just super and can be found at The Nerdy Bird.
Loose Pages - A. David Lewis is a comics writer and scholar, and Loose Pages as been absorbed into his extensive site, Caption Box.
Sean Phillips - The Blogger site is gone, but no worries, Sean is right over here.
Fred Hembeck - Hembeck.com hasn't been updated for over 10 years (and the Myspace page is gone), however Fred's a Facebook guy, and is regularly posting there.
Comic Book Sales Stats - Came rushing out of the gate in 2014 with a ton of work on comic sales data, then just faded away within 18 months.
A Comic A Day... - KaraokeFanboy was everywhere for a while, and most of those platforms are still online but not updated. I think this is his latest iteration.
Thanks for inquiring! AmazingArizonaComics.com is my most current comic blog, though it hasn't been updated much in recent months, either. I've had too many events IRL! I do update my appearances list there as often as I can, so please reference it as my prime destination.
I may revisit KaraokeFanboy Press in the near future; I'll let you know if and when new content goes up.
I appreciate your asking! If you need any more info, please let me know."
(* Permanote: I'm using Comicblogupdates and Update-A-Tron to facilitate this project. Quite a few of the links on these two sites rely on RSS/feeds. Some sites are still there; the provided link is just defunct)
Heading out for a trade show for the rest of the week - see you Monday with ABGTH and Cool Links!