I found some interesting articles about AT&T and IBM. They are written by Wu Jun, a research scientist at Google. I like Wu Jun’s writing style (humorous), and his business perspective of the two companies (very good).
One thing I felt amazing about IBM is this (quote the article):
在小华生执掌 IBM 的二十年里，IBM 的平均年增长率高达 30%，这在世界上可能是绝无仅有的，他的父亲也没有做到这一点。
Translated in English: in the 20 years when Watson Jr. was the CEO of IBM, the average anual growth rate is 20%. No other company has done that. His father Waton Sr. did not accomplish that either.