Welcome to Gaia! ::

ohai i just joined. jA j
i've thought vocaloid seemed pretty cool for a whiiile but i never really bothered looking into it too much. finally i decided to, and WOW ITS FUN lolol. but anywayy. i'm having a bit of info overload from there being so. many. things. x____x

so i was wondering how i could more easily get to know stuffs!
like what are things i should know about it/them and what are essential songs to get and all that *O *

ummm so far i think i like kagamine rin a lot/best. but i totally don't even know all of them...AT ALL gonk

lol sry im dum + annoyin
orz

vocaloid.wikia.com is a good place to start. It's been fixed with proper info by decent fans.
vocaloidotaku.net is also full of the smart fans who could gladly help you.

EDIT: The image in my signature also links to a good lot of history on the Vocaloids in one post on VO. :3

WARNING: HUGE POST.

Popular songs?
OK, Supercell is a popular band who wrote some really popular ones.
Supercell hits:
World is Mine - Hatsune Miku
Melt - Hatsune Miku
Love is War - Hatsune Miku
Black Rock Shooter - Miku (became the opening to an anime of the same name)

Miku Hits:
Ievan Polkka
The Disapearance of Hatsune Miku
Wide Knowledge of the Late, Knowledge
Joker
Last Night, Good Night
Saihate
Po Pi Po Vegetable Juice
From Y to Y
Romeo and Cinderella

Rin hits:
Kokoro
Meltdown

Len hits:
Spice!
Kokoro Kiseki (answer song to Rin's Kokoro, not made by the same person)

Rin/Len hits:
Paper Planes and Prisoner
Revolution/Rebellion
Trick or Treat
Adolescence (See Duets)


Meiko Hits:
Various Feelings
Sad Song
Honey (Sakine Meiko, actually)

Luka hits:
Rip=Release
Luka Luka Night Fever
Toeto
Just Be Friends
Double Lariat

Gackupo Hits:
Dancing Samurai

Kaito Hits:
Another: World is Mine (Answer song/Parody to World is Mine)
He has a lot of popular parodies, too.
(Can't think of any else for Kaito... Anyone care to help? sweatdrop )

Duets:
Cantarella (Kaito and Miku)
Cendrillon (Kaito and Miku)
Adolescence (Rin and Len, to the same tune as Cendrillon with different lyrics. Made by the same producer)
Magnet (Luka and Miku)
Circle You, Circle You (Luka and Miku)
Reverse Rainbow (Miku and Rin)
The Pair Tree Witherer/Paired Up Wintry Winds (Meiko and Kaito)
Go Google It (Luka and Gackupo)

Trios/More:
Acute (Kaito, Luka, and Miku)
Imitation Black (Kaito, Gackupo, and Len)
Conchita, the Epicurean Daughter/ Conchita, Evil Eater (Meiko, Rin and Len)
Super Turkish March - Owata! ＼(^o^)／ (Gackupo, Miku and Rin)
Dark Woods Circus (Rin, Len, Miku, and Kaito but not really Kaito...)


Of special mention is The Daughter of Evil series. Made by Mothy, it is a Rin and Len series. You've probably already heard of it, but if you haven't, I'd be happy to elaborate.
I'd also recommend Rin's song Fear Garden if you like scary songs. Just throwing a recommendation in there.

Sorry to overwhelm you again... I'm not really helping. sweatdrop

Psst. Gakupo has Paranoid Doll and Butterfly.
His cover of 'Under the Darkness' is up there too.

@Kaname: Very nice list =o
Kaito's cover of 'byakkoya no musume' is kind of a hit as well.

Also, Firequeen, your lack of Gumi is very disturbing.
Our 16bit Warz
Campanella
Coward Mont Blanc
Mosaic Roll

EDIT: And here I go, forgetting about Miki, Yuki and Kiyoteru again gonk -slaps self- It's like 9:30AM and I'm tired.

Miki has Satellite, Miki Miki Romantic Night and Rudy of the Illuminant which also features the other Japanese loids up to that point.

Kiyoteru has Brilliant Eve, Jewelfish and Guilty Verse.

Yuki has Disco Chocolatic, Shooting Star and Forbidden Fruit.

Of course all of this is just up until now. There could be a few more hits down the line.

@ Alysoun and Kaname Shion
Thanks for adding, I was just listing stuff off the top of my head.

Also, I think Alice Human Sacrifice/Hitobashira Alice is worth a mention.