It may sound strange, but I guess, ANY blog and ANY site can be safe for a kid, if you have parental controls on + some additional monitoring software installed on your computer. For example, I have blocked access to some internet sites and applications, limited the time of computer usage, so that my son can't play games or surf the web at night (the computer is in his room). Moreover, I've installed ProteMac KeyBag - it's a keylogger for Mac OS, I highly recommend it to all the concerned parents - a great app, records every keystroke. Thus, I have nothing to worry about. Good luck to you! (: