[Nadya]

>Not really. There are certainly plenty of books which will lose you money and time.

But what about data or privacy?

>I'm fine with ads on sites like Facebook where I know it's not going to take over my computer or launch a massive popup

The concern there would be privacy/tracking via advertisements. I readily admit that is a silly argument if one is already using Facebook. I do not have a Facebook account. I do not know when, if ever, Facebook will extend their advertisements to be used on partnered sites instead of internal-only. I can block them in advance even if I may never see them at all.