When email dawned with the Internet, nobody ran into these problems because email communication didn't care which client you were on. The communication happened

When email dawned with the Internet, nobody ran into these problems because email communication didn't care which client you were on. The communication happened irrespective of where you were. The same initial mechanism of email communication still persist today except perhaps someone innovated a little to make the group communication little easier (the listserv etc). We have come far in our journey, but people need to realize that no matter the innovation through Faebook, Twitter etc, the truth is that underneath all the glittering services, the basic communication need is still the same as it was during initial email days. So there should be multiple Twitters, multiple Facebooks and the average user shouldn't care which Twitter and which Facebook you are on as long as you can communicate easily. The problem is that people are not realizing this basic fact hence we have created one walled garden after another.