Helpful links for CBT.

[Overkill]

This is the offical site:
forums.classicbattletech.com/

This is a guide of the Inner Sphere and you can even get details for individual planets.

isatlas.teamspam.net/

Ok, here is the Wikipidia of the time line.
en.wikipedia.org/wiki/History_of_the_BattleTech_universe

Here are the maps by era.
geocities.com/area51/vault/2493/

Downloads
www.classicbattletech.com/index.php?action=downloads

Information
www.classicbattletech.com/index.php?action=text&page=Information

[comedian]

Very Helpful: www.sarna.net/wiki/Main_Page

It has stuff on nearly everything.

[Overkill]

Wow! Thtas a good site. Thanks!