"I think you're underestimating the importance of Facebook information towards making viable free content. The basic, accurate information you receive from the

"I think you're underestimating the importance of Facebook information towards making viable free content. The basic, accurate information you receive from the FB SDK really helps salespeople identify qualified leads for trial-to-paid conversions; the info also can be used to tell you what other websites people visit or software they use." I generally consider this kind of information warehousing and sharing unethical. While I understand the business case for it, and I understand that facebook has permission from their users because of the ToS agreement, I don't want to inflict it on my customers (who are often Open Source and Free software nerds who take their security somewhat seriously). I am a facebook user, but I don't like what facebook does to privacy. Google, same story. So, I view participating in those login systems as low-grade evil, as it contributes to the incredible stockpile of data facebook and Google have about all of us. I don't make a big deal about it, and I use sites that require it, but I don't have to like it. And, if there were a way for me to provide a similarly nice user experience to my customers without invading their privacy in any way, I would do so.