Hi Tim,
Welcome to the TUSA forum, and the Tenkara World in general.
There are many blogs / forums I could recommend, but since it is bad form to recommend websites on this forum that also sale products that compete with the TUSA products, I wont recommend any of them directly.
However, on some of the links below - I will in some cases provide a link to the site's Links page. Where you can find your way from there to many tenkara websites that may appeal to your interest.
First, I would recommend Michael Agneta's Tenkara Angler online quarterly tenkara magazine.You can read it online, pay to download the issues in PDF format or order a print copy.
https://tenkaraangler.com/Secondly, is a link to the Japanese language blog of Dr. Hisao Ishigaki. He is, I believe, Daniel's primary Japanese Tenkara mentor or sensi. Also known as Tenkara the Great or Great King. [テンカラ大王] The link below also covers his other interest. The Tenkara blog post are mostly in the center column.
http://aitech.ac.jp/~ishigaki/Oh, and just as an FYI about Japanese language :
Tenkara = テンカラ
Tenkara Fishing = テンカラ釣り
Tenkara rod = テンカラ竿 or テンカラロッド
Tenkara Fly (kebari) = テンカラ毛鉤
Tenkara Line = テンカラライン
Next is a link to the English language section on Masami Sakakibara's blog. aka Tenkara no Oni , Tenkara's Demon [ テンカラの鬼]. Specifically to the Links page where you can find several tenkara websites that might be of interest.
http://www.oni-tenkara.com/english/link.htmlProbably the most frequently updated Japanese language tenkara blog is the Yoshida Kebari blog.
http://yoshidakebari.jugem.jp/Two good reference sites for Japanese Flies, (Kebari / 毛鉤) are: Yoshikazu Fujioka-san's Best Streams (hi-ho) website ( for traditional kebari), and Todoroki-san's Kebariandfly blog (more far ranging kebari patterns) :
http://www.hi-ho.ne.jp/amago/b-streams/flytying/tenkara.htmlhttps://kebariandfly.wordpress.com/Christophe's English language blog Tenkaraenso, has a lot of good stuff. He hasn't done a lot of post this past year, but a lot of fun tenkara stuff going back about four years. And you will also find links to his favorite blogs.
http://tenkaraenso.blogspot.com/I'm not a Facebook, Twitter guy.
But if you are you might want to
take a look at Appalachian Tenkara Anglers FB page. Or just do an internet search for "facebook tenkara" to find several others.
https://www.facebook.com/groups/appalachiantenkaraanglers/?ref=group_headerLastly, check out the 10 Colors Tenkara Forum.
The place several previous members of the Tenkara-Fisher Forum migrated to when it closed several months ago.
https://discourse.10colorstenkara.com/Hope these are the kinds of things you were looking for.
D