Here are some sites you should probably visit.
Hey, Would I lie to you? So visit them.

House Veska - my Klingon house.

KAG - Klingon Assault Group; Klingon roleplayers.

KLI - Klingon Language Institute; Information on the Klingon Language.

mu' HaqwI' - Online Klingon Translator (Downloadable translator now available.)

Startrek.com Columns - A Klingon advice column, Ask K'plett. The Ferengi can be amusing, too.

Klingon Imperial Weapons Guild - Everything you need to know about Klingon weapons.

K'Tesh's Klingon Recipe Pages - Nourishment for the self-respecting warrior!

Klingon Google - Now it's just that much easier to search.

Klingon Academy, 'ampaS tlhIngan - An absolutely wonderful resource for learning Klingon.

Memory Alpha - Basically Wikipedia for the Star Trek universe.

wholesome goodness
My Personal Website.