A reader writes: "719software.com has an interesting story about TribalVoice who was probably the only real threat to AOL in the instant messenger field, since AOL's acquisition of ICQ. David fought Goliath and lost. Now the only one left fighting AOL over IM, is Microsoft. How ironic." There's actually more then just Pow Wow left - Jabber comes to mind, but the field has definitely narrowed over the last few years.
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