ICQ2Go
- Web-based version of ICQ enabling users to log on through computers that don't have ICQ installed.
- http://www.icq.com/download/icq2go/

Ufasoft Snif
- Sniffs ICQ, AIM, IRC, MSN and email messages across a LAN in real time. Includes ARP spoofer which allows you to capture network traffic behind switch-hubs.
- http://www.ufasoft.com/sniffer/

Communication Tube
- Free web-client for the popular instant messaging networks which currently supports ICQ, MSN Messenger and Google Talk.
- http://www.communicationtube.net/

TJAT Mobile Instant Messaging
- WAP-based ICQ client that can be used from mobile phones.
- http://www.tjat.com/

Capcha
- Allows to copy smiles and punctuation from ICQ message log window. Supports all types of smiles, custom graphics and inserts text as graphics where it is possible.
- http://www.capcha.com/

Capture Text
- Helps copy and paste messages from ICQ chat window to clipboard in Text or Rich Text Format (RTF). This is useful when you cannot copy chat text using standard function because ICQ doesn't copy smiles and annotations.
- http://www.capturetext.com/

Become Happy
- Sends greetings to ICQ recipients. Contains 25 pre-composed greetings and allows to create a new one or to choose a picture to attach to a message. It supports all versions of ICQ including the latest one, 2002a.
- http://www.becomehappy.com/

mICQ
- Text-based ICQ client supporting the new v8 ICQ protocol, including v8 direct (peer to peer) connections and file transfer. It is translated to several languages languages, including Spanish, German, Russian, French.
- http://www.micq.org/

KXicq
- Linux client for ICQ, requires KDE.
- http://www.kxicq.org/

Power Tools
- Programs to enhance ICQ with add-ons, plugins, backups and recovery.
- http://www.icqgreetings.com/icqpower.htm