"10 Fictional Languages That Can Be Learnt"

[Kamean]

I think it's just an imitation.

Yes, I think so too.. There is this webpage where one can get English words translated into Parseltongue, but unless I misunderstood the concept I believe the website crew must've made up most of the words on there.

Page doesn't exist.

[Ftxavanga Txe′lan]

Page doesn't exist.

Sorry about that! I failed at copy-pasting. The address is the following (the same that they give on Smashing Lists):

http://www.theparselmouth.com/ It's really the only "source" I can find about Parseltongue!

[Kamean]

Irayo, now it works. 

Interesting, who's the author?

[Ftxavanga Txe′lan]

In the credits (middle-bottom), it says this:

Translation and voice
Phylloxera

Production
Phylloxera and bubu from bubuland

So probably a HP fan who decided to expand the language or something? In any case, it's most probably not official.

[archaic]

Is it just me, but comparing 'My Message in Parseltongue' with Ron speaking it, they don't even sound related.

Spoiler

Exclusive: Deathly Hallows Part 2 - 'Chamber of Secrets' Clip (HD)

[Kamean]

In any case, it's most probably not official.

Agree.

[`Eylan Ayfalulukanä]

I have been thinking about this for a long time, and this is how I consider this list playing out:

1. Esperanto - Has a big enough following to eventually become a natural language.
2. Klingon - At least one work in Klingon (Hamlet) is already considered literary classic.
3 or 4. Na`vi - Quite new, but has an enthusiastic developer and a enthusiastic user/fan base.
4 or 3. The Elvish tongues. There are a lot of Tolkien fans out there, and a loyal fan base.
    I don't know how much they are doing. I ranked them below Na`vi because there isn't
    any development going on. But the languages' history could historically rank them higher
    Na`vi, or maybe even Klingon.

Below this list is a mish-mash, and I doubt most of the conlangs on that list would even qualify. Atlantean is a really nice language, but does not have complete documentation or a large vocabulary. Lojban has a small but enthusiastic community (certainly larger than many on the list), but is not on the list. Dothraki is too new to know where it is going to go. But it is a (IMHO) a very well-designed language with lots of potential (and vocabulary to come). But like Na`vi, it may ultimately be limited by not being a technological language (and this may be part of the reason Klingon has succeeded). One of my favorites, Kzinti, seems to be moribund at this point, but has a good start. Once I have mastered Na`vi, Klingon and Dothraki (we're talking a few years here), and have learned a lot more about developmental linguistics, I hope to revive Kzinti (or create an all-new felinoid language).