Well truthfully, no different.
In about 1993 my sister sent me some 'apostate' literature to tell me about the 'truth' ... I remember a couple of articles in particular about the Society's not so truthful past about dealing with black JWs. At the time, I barely read it. Later, many years later, like 7 or 8, after I had already left the JW, I saw those same articles online.
When I came across them again, I read them with much greater interest but I had already left, due to how the JW organization treats human beings, not doctrinal issues.
I suspect you will get two different answers; some the same as mine. Others, who left because of doctrinal issues they found out about while researching on the internet.
There's no doubt how much a role the net has played in their leaving the 'truth.'