ClayFighter series
-Metasponge64 chars are all offline (in his web he said he's remaking them, I hope so)

Namco X Capcom
-The title should be  with the X instead vs Fixed
-Tetsuo9999's Dig Dug is still online Does not work on 1.0
-Saya image isn't shown [Don't have it yet]
-Tiger Mask's Hideo like is still going to my past webpage (MI) instead new one (Guild) Fixed
-Shimon also made Hideo (with Kyoko as striker, similar to his NXC Karin with Sakura as striker)
-Dazz ripped NXC sprites Added

But Fio's first appearance was in Metal Slug, and Rocky's in Robo Army. Fixed
Guts Man by OnslaughtX & Kung Fu Man is offline. You should add archived link:  http://web.archive.org/web/20070809035140/http://randomselect.piiym.net/ Fixed
Litchi Faye-Ling by QY China is offline. Offlined
Gorimaru Jr shows wrong image. Fixed
Link for KoldSkool's website leads to Kamekaze's site. Fixed

The Blood Warrior [Digitized] section is missing... any plans to add it in the Database?

DBZ section:
- you forgot Ultimate Gohan by Miaoyu: http://mugenguild.com/forum/topics/ultimate-gohan-released-miaoyu-mugen-dbz-dream-150053.0.html
(or Mugendream.com)

Can you add Rakuga Kids?

Existed and leave to exist or truly lost forever and not listed in Mugen Guild Wiki:

Ryo 94 by Kusirojin
Yuri 94 by Anotherlive
Ryo 95 by Anotherlive
Xiangfei 99 by Anotherlive
Kyo 95 by Awakorih
Geese 96 by Wen586
Chizuru 97 by Gen_an
Yamazaki 98 by Gama
Chin 99 by Sorrowedge
Andy 95 by Sorrowedge
TamTam SS4 by Sorrowedge No sound i think...
Iori 99 by Wen586
King 99 by Jin Kazama Listed in KOF99 section
Kyo 99 by OooOO 
Kyo 99 by Jin Kazama
Maxima 99 by Faizeq
Robert 99 by Adeli
Takuma by Wen586
Terry 99 by Blackbocs
Xiangfei 99 by Youngming Listed in KOF99 section
Leona 99 by Socc200 & Szyslak
Leona by K-Z
Leona 98 by Edo Impact Listed in KOF99 section. There are 2 ('98 & '99) ?
Kyo 94/95 by Mouser
Whip 99 by Minky Momo.

Tighriam Ptan and Ohgaki skydrives are offlines.
New Tighriam skydrive: https://skydrive.live.com/?cid=b83dd1c94fcb3105&id=B83DD1C94FCB3105!127 Fixed
New Ohgaki Skydrive: https://skydrive.live.com/?cid=6E75371007E5D7F9&id=6E75371007E5D7F9!107 Fixed

Super Cosplay War Ultra
-You forgot some chars in the list: [Are those playable or assists ?]

And from older sections...
Namco X Capcom
-Saya's image is missing?? No problem Fixed

-These chars are missing in the list: [Are those playable or assists ?]

Akatsuki Blitzkampf
-Flowrallia's Akatsuki preview isn't shown Fixed
-En-Eins, Kati, Marilyn Daiie and Tempelritter images aren't shown [Don't have them yet]

I think Asura should be moved to Special Edited Versions section.
King by Infinite should be removed from Special Versions section. There is already one in Special Edits. Fixed

NHK has made Ikkyu: http://nhkxx.web.fc2.com/ Added

Suigin has also made Ren/Ryoufu:  http://kotenkotenko.blog7.fc2.com/blog-entry-172.html Added.
Also Added Aisha and Rinrin released today

Kai(Shadow Force) shows wrong image. Fixed

Gel, Golem and Monolith by MF should be moved to Original Edits - High Resolution. [Are they really hi-res of just big ?]

Omegapsycho is from Mexico, not Canada.
QY China website is offline.
ZVitor website is here:  http://www.zvitor.com.br/ He is also from Brazil, not USA.  Fixed

You also forgot to mention that Nimame has a different website be now: http://blogs.yahoo.co.jp/mugennimame/folder/990977.html Fixed

Street Fighter IV

Jose Cuervo also made Blanka, Deejay, and Chun-Li. All added

As a bonus, I also have a suggestion: What do you think of idea of spliting the Official Fighters section into Fighters and Minigames? That could remove some confussion for these, who aren't familiar with the source game. While it is obvious in some games (like the car in Street Fighter 2 or any instances, where the Minigame is called Minigame or has a similar name), there are still cases, where it isn't. Those, who aren't familiar with, let's say JJBA, could mistake N'Dour for an actual fighter (though he was also a minigame in the source game).

About SCWU, yes, all are playable, there's no assists here (they're from last SCWU version released: GenkaiToppa from 2009). [Added]
About NXC, some are playable and some are enemies/assists, but there're already some assists in your list, so I added a few more [Not sure adding assists... do they have enough sprites to make an actual fighter ? If not it's better to remove assists that i may have added...]

I think yes, there're some NXC chars made for MUGEN that are really assists or enemies from the game, like Dino Crisis' Allosaur. About SCWU, do you receive my message about it (Rario) to be added to database?? Also, I got like 20 chars' stands ripped, there're still a lot to get. Should I send you what I do by now or better wait until I get all of them, what do you think??