It's unusual to see a tech reporter anticipating Net safety problems with a new social app feature. So I was impressed with a post by TechCrunch.com's Sarah Perez about Secret's forthcoming addition of "Secret Dens" for anonymous sharing in specific locations (like schools, companies and other organizations). Launched early this year, Secret is an app for sharing thoughts, "secrets," etc. … [Read more...] about Hmm. Secret to open anonymous ‘Secret Dens’