AIM Clients and Addons
Here you'll find many aim client downloads. Mostly third party aim client downlods, but stable and compatible none the less. Enjoy the aim clients aimQueef has to offer!

AIM 5.2.3292 Ad removal
It's pretty obvious what this does. It removes the ad banner from the aim client window on version 5.2.3292. I haven't personally tested this on other versions, but wouldn't hurt to try. ;]
Size : 7 KB
Author : Slider
Download : Here

AIM+
This is a mod to AIM that allows you to create another instance of AIM (clone aim), clears too large msg windows (chats, ims, even when you direct connect and send files and images), and removes ads. Works with AIM client 5.9, unsure of other versions.
Size : 184 KB
Author : Slider
Download : Here

AIM Expansion CE
This is a proxy that allows you to enhance your AIM experience. You setup to connect to localhost (through proxy connections), and you're able to do things to your aim clients such as block IMs without the block feature, remove HTML from IMs, Block crashes, and plenty, plenty more.
Size : 725 KB
Author : Xeon
Download : Here

AIM Expansion CE Fixed
Wrycu's modded AIM expansion by Xeon is one of the best AIM proxies I've seen. Added abilities to work with Pidgin, and completely block ghosting messages. With this AIM proxy it'll turn Pidgin and your AIM software into the best AIM client around. Size : 165 KB
Author : Xeon & Wrycu
Download : Here

Aimutation 1.3.2
This is a popular program to use to modify your aim clients window. It has many options including skinning your AIM, buddy aliasing, and plenty more.
Size : 1982 KB
Author : 545 Studios
Download : Here

Beagle 2.0.2
This is a small TOC client made by Pixel. Has the obvious options an aim client should have, and a small compact interface.
Size : 77 KB
Author : Pixel
Download : Here

Chameleon
This is a program to make your aim client a bit more colorful. It allows you to mod your 'buddyui.ocm' without hassle. It has options to change your buddylist background, buddyhightly color, background of the buttons, and a few others.
Size : 12 KB
Author : Arub
Download : Here

chatui.ocm
This is the replacement file for AIM users. You can replace this file in your best aim client directory, and it'll allow you to enter up to 9 or 10 chats. I've grown to love this.
Size : 41 KB
Author : Modded by Drew
Download : 5.2-5.5 | 5.9

Dead AIM 4.5
This is a very popular AIM mod. It allows you to log conversations, clone your aim client, and a few more options.
Size : 673 KB
Author : JDennis
Download : Here

ecAIM 6.8 ad killer
This program has the ability to kill or replace the image advertisements on your aim client version 6.8
Size : 19 KB
Author : Seven
Download : Here

ecNuntius
A nice aim client made by Seven. Has pretty nice options with a decent interface. Plenty of crashes and exploits built into this best aim client.
Size : 4812 KB
Author : Seven
Download : Here

iEM
A mini AIM client made by ThirtySixWay. Has a very nice compact interface with options you'd need in aim clients. Props Josh (:
Size : 81 KB
Author : ThirtySixWay
Download : Here

KuzcoProxy v2 BETA
This is Kane's mod of R0bby's infamous open source proxy (though he denies it for whatever reason), i haven't tested it's effectiveness, but I haven't heard any complaints about this program, though I doubt most people have given up on Kane's attempt at programming aim clients.
Size : 118 KB
Author : Kane
Download : Here

leeto AiM
This is a mini AIM client. Has a Protect Mode function for when chats are being botted, and has an chat owner saver option on this best aim client. It's a very good program.
Size : KB
Author : j0lf
Download : Here

Messenger Mate 2.2.2
Now this, is my preference for an aim client 5.9 modifcation. It has options like blocking SML (so you don't crash), cloning AIM, AIM themes, and plenty, PLENTY, more.
Size : 2024 KB
Author : Versoworks (Cracked by NOP)
Download : Here

Middle Man
Another popular addon to AIM. It allows you to clone aim client windows, change your idle time, log your conversations, and a few more options.. Only works with unmodded versions of AIM 5.9
Size : 864 KB
Author : Unknown
Download : Here

miniaim
Obviously this is a mini aim client. I'm not sure at all about it's qualities, only know it has a decent iface.
Size : 77 KB
Author : Jon Honeycutt
Download : Here

Pidgin 2.1.1
Pidgin, originally Gaim, is a third party aim client. It supports many more messengers, but yeah... this is an AIM related site. So whatever, it's supposivily hard to lag out, has a faggot interface, but I'd assume people use it.
Size : 11498 KB
Author : Unknown
Download : Here

Terra IM 1.2.5
Small aim client, can choose what protocal to run off for AIm (TOC2 or OSCAR), not sure what other options it has besides that.
Size : KB
Author : Unknown
Download : Here

Trillian v3.1.9.0
This is a very popular third party AIM client. Has a neat interface, but it's got it's sploits where it can be lagged out of chats and crashed. As do many other aim clients.
Size : 8665 KB
Author : Unknown
Download : Here