The following links are Non-HP or miscellaneous links that may not have general appeal. It is a work in progress.

TI Calculator Resources:

DATAMATH Calculator Museum - The definitive site for detailed information on on all Texas Instruments (TI) calculators ever made. Also has information for other calculator manufacturers, including some HP calculators. The best reference for TI calculators on the Internet!

DATAMATH Calculator Museum Product Manuals and Product References - Contains scanned manuals for many TI brand calculators.

TI-57 Emulator (with Original ROM and Diagnostics) - This online TI-57 emulator claims to be one of the most faithful TI-57 emulations currently available. It is also using an exact copy of an original TI-57 ROM.

TI MultiView Emulators in JavaScript - This page contains online JavaScript emulators for the popular TI MultiView scientific calculator series by Texas Instruments. Includes emulation of the following TI MultiView models: TI-30X (aka TI-36X Pro), TI-30XS MultiView , TI-34 MultiView  and TI-Collège Plus.    No ROMs required!

R/S Key Texas Instruments Manuals - The R/S Key Programmable Calculator site (rskey.org) has an Exhibit Hall with information on programmable calculators from many manufacturers as well as a Master Index of all calculator makers on the website.  See the Texas Instruments page for information on programmable TI models. This page from its library section has many scanned manuals for various TI models.

Datamath: Project X (TI-88) - This page tells the story of the TI-88 calculator, the unreleased high-end programmable calculator that would have been the successor to the TI-59 and anticipated competitor to HP's legendary HP-41C family. Also see the videos; HHC 2022: TI-88 Part 1: History and Go / No Go Decision and HHC 2022: TI-88 Part 2: Features, Comparisons, and Verdict by Gene Wright and HHC 2022: TI-88 Hardware Tour by Richard Nelson. RSKey.org has a great page on the TI-88 as well.

Notable non-HP Calculator related forum posts, articles and videos:

2015's calculator anniversary: the SR-52 - Discusses the SR-52, TI's first programmable calculator. Includes many disassembly photos and a link to a SR-52 and SR-52A Troublshooting Guide. Also see the post: SR-52A rebuild project.

Calculator Culture YouTube videos: TI - TI-58C Scientific Calculator from 1978, TI Galaxy 67 Scientific Calculator from 1992, TI-74 Basicalc Pocket Computer from 1985, TI-66 Programmable from 1983, TI-Nspire CX II CAS Calculator Review, TI-68 - Scientific calculator from 1989, TI-95 Procalc from 1986, TI-81 - Texas Instruments' first graphing calculator, TI Voyage 200 & TI 89 Titanium Graphing Calculators