These days everyone wants to have their own Instant Messenger program to put their name on. This has lead to a plethora of Instant Messaging clients to choose from when feeling the need to IM. Many new clients support multiple popular IM protocols such as AIM, Y!, MSN, Jabber, etc. Some choose to just support one or two protocols. Whatever the client, you probably will find it here in this rather exhaustive list of IM clients. They missed a few but we won’t hold that against them.