TI-89.org: Helpful Links

TI-89.org Links

ticalc.org: ticalc.org is the most extensive TI calculator site that's out there. It's main feature is the biggest TI file archives anywhere, but it also contains TI news, Assembly programming information, and several other sections.
Dimension-TI: Dimension-TI is probably the second most known news and file site for TI calculators. It contains large file archives, TI news with moderated commenting, information on programming, and more.
TI-News: TI-News, as the name suggests, is a TI news site. It has news updates more often than ticalc.org but has smaller discussions.

Techno-Plaza: Techno-Plaza is a website dedicated to 68k TI calculators such as the TI-89. It has many programming resources for writing in both Assembly and C. If you want to learn to program Assembly for a 68k calculator (which is best for games and graphical programs, as TI-Basic is many times slower and not good for them), this is the place to look (unless you already know some type of Assembly and don't want to write in C, in which case Jimmy Mardell's 68000 Guide is the place to look).
TI-GCC: TI-GCC is a modification of the popular GCC compiler, allowing you to write TI-89 and TI-92+ games in C. If you don't know Assembly but want to program fast games for the TI-89, I recommend using this.

Dmoz's TI Directory: This site is a good one, as it is the TI calculator page of the Open Directory Project, a project used to categorize much of the internet (and that many search engines use). If you don't find what links you need on TI-89.org, or want a list of places to buy TI's, check out this site to see even more TI links with their descriptions.
Texas Instruments' TI-89 Page: This is TI's TI-89 page. It includes basic information about the TI-89 and also contains its Flash applications, which include the upgraded OS (although this cuts compatibility with most games), its Statistics with List Editor, and a few paid programs. Note that installing its new AMS may cause problems when attempting to run Assembly programs such as the games on my site. Titanium features here.
DoorsOS: DoorsOS is one of the best shells for the TI-89 and allows you to run most Assembly programs. It also contains DoorsOS explorer, a graphical file explorer, as well as a compiler for Assembly programs.
TICT: TICT, or the TI-Chess Team, is a very popular programming group with great contributions towards the 68k calculators. TICT has produced such fine titles as TI-Chess, TI-MineSweeper, and TICT eBook Reader. Also noteworthy is the fact that it is one of the first major TI-89 programming groups to write TI-89 programs in C.