Founding Fathers
LittleKuriboh
The creator of Yu-Gi-Oh! Abridged as well as the creator of the idea of an "Abridged Series". LittleKuriboh (also known as "LK") currently has 39 episodes of Yu-Gi-Oh! Abridged and has a website where you can view all of his episodes.
MasakoX & Vegeta3986
Quickly following LittleKuriboh's example, MasakoX and Vegeta3986 started up Naruto Abridged, with LittleKuriboh appearing in their first episode. Naruto Abridged currently has 24 episodes. However, after episode 19, their accounts were suspended so they created two new accounts, Vegeta8639 and MasakoXtreme. Episodes 20 and 21 can be found on their page, while the other 19 can be found scattered across YouTube. Their site can be found here.
Lanipator
With awesomeness, more awesomeness is spawned. Due to a rugby injury, Lanipator came across LittleKuriboh's YGOTAS and NTAS and decided that while he was injured, he might as well do something. So, he released the pilot of his Yu Yu Hakusho Abridged and many people liked it. He currently has 16 episodes out, as well as the Poltergeist Report Abridged Movie. He has a Geocities website, however, it's not currently up-to-date.
hbi2k
hbi2k started abridging when he tried to write a novel, but due to a lack of committment (which xLight09x shares) to an actual novel, he started Berserk Abridged. Berserk Abridged ran for 23 episodes plus a finale, which starred Vegeta3986, MasakoX, Lanipator, and Whiteash001. He has finished Gantz Abridged with the help of Cassius614. Gantz Abridged has 19 episodes and a finale. Now, hbi2k works on Visions of Escaflowne Abridged with the help of Cassius and AngelElric.