Rabbis on Techeiles
- Haskamos – Techeiles.org – https://www.techeiles.org/haskamos/
- Debate – Techeiles.org – https://www.techeiles.org/debate/
- Notable Wearers – https://bluefringes.com/notable-wearers/
Halachic Acceptance of the Murex
- Youtube Playlist – https://www.youtube.com/watch?v=KJxiaTXPf_I&list=PLMdP2UajWfC-IkvxC77cMA75i2PLzH2FQ
- Tzeidah Playlist – https://www.youtube.com/watch?v=_xILFNZd0EU&list=PLMdP2UajWfC-KdL-ZG1gCNbtwGAmRAzit
- Ohr Chaim Lectures – https://www.youtube.com/watch?v=GQyuo1gKGUs&list=PLMdP2UajWfC8hc6mCV2xUJB45Zi3KqFHo
- Murex Science/Snail Details – https://www.youtube.com/watch?v=Pn5Uxkvyvxs&list=PLMdP2UajWfC9-5YZgwelflGcnGlG-e55D
String Ratio Debates
- General Definition of a Psil Techeiles: https://www.mywesternwall.net/2018/08/22/what-exactly-is-a-psil-as-in-ptil-tekhelet.html
- R’ Aryeh Lebowitz: How Many Strings Techeiles and Lavan (bottom-line: Tosafos for Ashkenazim, Rambam for Ashkenazim and Sephardim): https://www.yutorah.org/lectures/lecture.cfm/873935/rabbi-aryeh-lebowitz/ten-minute-halacha-how-many-string-should-be-techeiles-and-how-many-white-/
- R’ Hershel Schachter: Halachos of Techeiles(bottom-line: Tosafos for Ashkenazim, Rambam for Ashkenazim and Sephardim): https://www.yutorah.org/lectures/lecture.cfm/880727/rabbi-hershel-schachter/halachos-of-techeiles/Comprehensive Tying FAQ: Ptil Tekhelet: https://www.tekhelet.com/tekhelet-tying-faq/
- Raavad
- במספר חוטי תכלת אם עשה כשיטה אחרת והכרעה במספר החוטין – הרב יצחק ברנד
- חוט תכלת – בראנד, הרב יצחק
- בדין מספר חוטי תכלת וסדר הכריכות והקשירה – בראנד, הרב יצחק
Short version:- The Sifri pretty much explicitly states Raavad’s shittah;
- The Beis Yosef/Kesef Mishnah had an incorrect Girsah of the Raavad and assumed that he had the same opinion as Tosafos;
- In absence of a solid mesorah (which obviously no one has in regards to Techeiles), you should use logic to decide the Halacha (instead of Paskening by ethnicity), which is what the GR”A did when he Paskened like the Raavad.
On Mesorah
- HistoryMesorahNignaz
- Lulaot HaTekhelet – Response to Rebbe Rashab on Techeiles
- R’ Bentzion Twerski – The Question of Mesorah – https://www.youtube.com/watch?v=ahSCfsjaMdY
- Techeiles and Mesorah – R’ Hershel Schachter –
Libraries
- Tekhelet.com – https://www.tekhelet.com/library/
- Techeiles.org – https://www.techeiles.org/library/
Videos
- Ptil Tekhelet – YouTube – https://www.youtube.com/channel/UCozPMEd2DEYgcA4vn2mbS6g
- Techeiles.org exclusives – https://www.techeiles.org/library/library-videos/
- Techeiles Video – https://www.techeiles.org/techeiles-video-its-not-all-black-and-white/
- Blue Fringes – YouTube – https://www.youtube.com/channel/UCnLs4suuiIMKv-bQTsY_ELw
- Techeiles History – Rabbi Michael Skobac – https://www.youtube.com/watch?v=157AbatfTbE
- WebYeshiva Course – Ptil Tekhelet- WebYeshiva Course
FAQs
- Ptil Tekhelet – QA
- Ptil Tekhelet- Tzitzit Tying Questions
- Ptil Tekhelet – Tying Options
- Ptil Tekhelet- FAQ
Blogs and Forums
My Western Wall – https://www.mywesternwall.net/category/judaism/torah/tekhelet-techeiles
DISCUSSION FORUMS – STACKEXCHANGE
DISCUSSION FORUMS – QUORA
DISCUSSION FORUMS – REDDIT
DISCUSSION FORUMS – TWITTER
Misc
https://kosherjava.com/mordechai/