I don't know if one should focus on the type of media (websites, books, podcasts, etc) to put out to get through to JW's, I think the important thing is HOW the message is delivered. I read COC, (not until 11 years after I left, and by then I was totally sure the JW's didn't have anything right) and what impressed me most was the tone of the book. Ray Franz used the "just the facts ma'am" rational approach that I think is the most effective. I think there are some out there who harm any efforts to get JW's to see the truth about the "truth", because their approach is very over-emotional, irrational, and sometimes focuses on elements of the JW's that plain just aren't true, and hurts any credibility of the message they have, both with JW's and any "worldly" people that might see their message, because, well, they just come across as lunatics. Hell, sometimes when I listen to those ones, I'm almost convinced the JW's have better logic than they do.
But I'm afraid you and I have cynacism in common. I don't see the downfall of the JW's coming anytime where I'll see it, and if it does come, I think it won't be a disbanding, but a major doctrinal shift that will show the JW's of 100 years from now to have as much in common with the JW's of today as the JW's of today have with the JW's of the CT Russel era. (Translation: little if anything in common.) The population in general will never care about what JW's do to their members, they're just not important enough to even be a blip on their radar.
And you can also count me in as another who doesn't necessarily thing bringing them down is a good thing. There is a significant enough portion of JW's hanging by a mental thread, or just plain not being tough enough to make it without the WTBS telling them their every move. I think if something miraculous shut down the entire operation tomorrow and without a doubt proved that they weren't God's channel, you'd see a fair amount of suicides, people too depressed to go on, or people finding something equally as cultish to turn their lives over to. Sometimes I think of my Grandma. She's the person in my family I'd like most to come out, but she's also the least. She's 83 years old, and it was hard enough for me to accept the first 25 years of my life were nothing but a big waste. I don't think she'd take it well that the last 83 years of hers was.
For now, I'm just going to go with the best anti-Witness is a life well lived. I do everything I can to take the high road, and while I know nothing will change with my family (and, TBH, I can't say I want it to change for them), I know if nothing else, I've shown them that my life didn't end and bad things aren't happening to me because I've left.