I am not even going to attempt going into the details , negatives and positives of the announcements which Facebook has made in the recent F8 conference , theres a lot of information out on the web and sites like Watblog have covered it well. What i will touch on is the Open Graph feature
To summarize , Open graph essentially allows other websites to access details of your Facebook account to try and give you a more personalized experience while surfing the internet. FB has tied up with 30 odd vendors across the web right now to try and make this happen. So if you visit a website , the open graph gives you recommendations basis what it thinks you will like – what you like is something it will try and figure out by scanning your FB account – Yes , Privacy suddenly becomes public.
I for one am still in the process of digesting all the implications and the information present on this , but what i did do was to turn off this feature to ensure that till i am 100% convinced (IF) , my details are protected and for those who wish to follow the same approach , this is how you can turn it off ( Incidentally for me it was off by default , but never hurts to check it out)
Login to your account and go to Privacy Settings from the account tab present on the top right. Then go to applications and websites in the choices which you see. Once inside this page , scroll right to the bottom , to the INSTANT PERSONALIZATION link and uncheck ALLOW. This will deactivate the feature.