Television news archive - http://tvnews.vanderbilt.edu/

Textbooks [open-source] - http://us.geocities.com/alex_stef/mylist.html

Tests in print -
http://support.epnet.com/knowledge_base/detail.php?id=3329

Textile technology index -
http://www.ebscohost.com/thisTopic.php?topicID=143&marketID=1

Thermophysical properties of matter database (TPMD) -
http://www.csa.com/factsheets/cindastpmd-set-c.php 

THOMAS - http://thomas.loc.gov/

Thomas register of American manufacturers and
Thomas register catalog file. - http://www.thomasnet.com/

ThomasNet - http://www.thomasnet.com/ 

Thomson Research - http://research.thomsonib.com/

Toxicology abstracts - http://www.csa.com/factsheets/toxicology-set-c.php

TOXLINE - http://www.csa.com/factsheets/toxline-set-c.php

TOXNET - http://toxnet.nlm.nih.gov/

ToxoDB, the toxoplasma genome resource -
http://www.toxodb.org/toxo/

Trail planning, construction, & maintenance -
http://forestry.lib.umn.edu/bib/trls.html

TreeBASE - http://www.treebase.org/treebase/index.html

Treesearch - http://www.treesearch.fs.fed.us/

TRIS online - http://ntl.bts.gov/

Tropical forest conservation & development -
http://forestry.lib.umn.edu/bib/trps.html

Turfgrass information file - http://turf.lib.msu.edu/