Comet Servers
- Open-source
- Commercial

Comet Servers

Open-source

APE http://www.ape-project.org/
Orbited http://orbited.org/
Cometd http://cometdproject.dojotoolkit.org/
Netty http://jboss.org/netty
Jetty http://www.mortbay.org/jetty/
Grizzly https://grizzly.dev.java.net/
msgbus http://code.google.com/p/msgbus/
Punjab http://code.stanziq.com/punjab XMPP over BOSH.
http://code.google.com/p/handballer/
http://www.sitepen.com/labs/cometd.php
- http://svn.xantus.org/shortbus/ Python implementation of cometd.
http://code.google.com/p/libevent-longpolling/
Comep http://sourceforge.net/projects/comet/

Commercial

https://jabbify.com/home/comet_service