In the case of the general public it is different. A curtain is a highly intuitive instrument for privacy protection, you pull it and it covers the window. Understanding how to secure a technical device such as a webcam is not as easy or intuitive, especially if as another poster mentioned, the device is configured to broadcast automatically. People will almost always stay with the defaulted configuration unless they fully understand the technology, hence the reason wifi routers now come with long cryptic random passwords.
Great start! Looks like you have some great feedback here as well. This is a resource I could see myself coming back to often.
One thing I noticed is that if I add a book while in the 'browse' list view, I am thrown to the top of the page where I am given a notification. If I could maintain my position on the page that would be ideal, maybe a pop-up notification that the book was added; or replacing the pin icon with another graphic for removing the book from the shelf. This way I don't have to scroll past all the books I have already looked through (not as big of a deal at the moment, but I could see it becoming an issue as the collection of books grows).
Also as you add features to the site, an option for browsing books in a 'grid view' rather than just a list could potentially be useful. Especially as the collection grows.
Best of luck, looking forward to see the resource this site will become for the hacker community.
I'll work on the scroll, but bear with it for now. There's zero JS on the frontend right now, except for some analytics code. Adding to your shelf shouldn't require a whole page load. I'll ajaxify it in stages.
I understand a work in progress, so it doesn't bother me so much, just an observation that hopefully helps! Agreed, ajax is the way to go, a full reload is expensive.