how can i learn klingon?!?

[Mahsa]

i really want 2 learn klingon do u know any sites?!? where can i download the dictionary 4 free?!? any other details u have!!! plz so important 2 meeeeeeeee!!

[Starling]

There's loads of sites and you can get books and cds too.
Online: http://klingonska.org/dict/
Online: http://www.movies-dictionary.org/English...ictionary/
Book: http://www.amazon.co.uk/The-Klingon-Dict...067174559X
CD-ROM http://www.amazon.co.uk/Talk-Now-Learn-K...613&sr=1-1

[Saecula Saeculorum]

By giving up sex altogether.

[RE]

Go to any used book store and you will find multiple dictionaries for next to nothing, unloaded by people who used to have your degree of enthusiasm but soon became bored with it.

[tesseraktik]

I can recommend starting out by listening to DaHjaj Hol (a podcast by the founder of the Klingon Language Institute); the idea is to teach you Klingon in short segments. You'll find the first episode here:
http://www.lawrencemschoen.com/podcasts/...ol-110101/

Full list of episodes starts here: http://www.lawrencemschoen.com/category/...s/page/46/
(there are around 365 of them in total)

I can also recommend these two websites, which include a lexicon, grammar guides and more:
http://www.klingonska.org
http://hol.kag.org

You can practice your Klingon and ask questions to experienced speakers over at the KIDC forums:
http://www.klingon.org/smboard

...and on Twitter, many of us use the hashtag #tlh. One good account to follow is @kwotd, which tweets a Klingon word of the day.

On Facebook, you can follow the page Hol 'ampaS, which publishes a Klingon word of the day and other posts related to the Klingon language.
There's also a Klingon word search app on Facebook that you can use to practice your vocabulary: http://apps.facebook.com/klingonwordsearch/

...and a Klingon flashcard set on Memrise: http://www.memrise.com/course/25764/klcp1/

If you decide to really go for learning the language, however, I really do recommend getting the books "The Klingon Dictionary" and "Klingon for the Galactic Traveler" by Marc Okrand.
http://amzn.com/067174559X
http://amzn.com/0671009958

There's also a really fun audiobook called "Conversational Klingon", which is available on iTunes, Audible and the like.

Oh, and one last thing: Don't trust automatic translators; they virtually *never* produce correct tlhIngan Hol.