Lenco Marine
Manufacturer of trim tabs, troll'n tabs, racing tabs, and hatch lifts.
http://lencomarine.com/

Tab Kit
Makes tabs more efficient for power users, bringing tab grouping, and tweaks such as multiple rows of tabs or displaying tabs as a tree.
http://jomel.me.uk/software/firefox/tabkit/

Marco
Terminal blocks and strips, barrier strips, military terminal blocks and more. We have terminal block to fit your particular application needs and to conquer all environmental factors.
http://www.marcomanuf.com/

Kleer-Fax Office Products
Manufacturer of index tabs, legal exhibit tabs, custom printed tabs and other tabbing and office products.
http://www.kleer-fax.com

Tabs Menu
Firefox add-on that adds a Tabs menu to the main menu
http://mikelward.com/software/firefox/tabs-menu

Tree Style Tab
Pictures I drawed, XUL applications for Netscape 7/Mozilla, Project W3C-Girl, and so on.
http://piro.sakura.ne.jp/xul/_treestyletab.html.en

Tabs versus Spaces
Using tabs in source code: Pro and contra, by Jamie Zawinski.
http://www.jwz.org/doc/tabs-vs-spaces.html

Sort Tabs By ...
A Firefox extension for sorting/grouping your tabs by domain name and more.
http://codeoptimism.net/blog/post/2007/08/sorttabsby-firefox-extension.aspx

Cattle Genome Mapping Project
Includes chromosome maps, marker information for markers used in the genomic and locus scans, and marker searching by name .
http://www.marc.usda.gov/genome/cattle/cattle.html

DuraPlane Trim Tabs
Manufacturer of high performance trim tabs available in almag, bronze and titanium.
http://www.duraplanemarine.com