Share buttons are there in each post's which can directly access your social networks for sharing the post you selected. No passwords are saved by this.
Name & e-mail
In some specific pages and in most of the posts you will find a comment section where the readers can ask questions and appreciate the writer by using comment option. Here your name and e-mail will be stored if the reader is already logged in with google or else it'll automatically ask the user to enter his name and comment.
A cookie is a small text file that is stored on a user's computer for record-keeping purposes. "My life diary" uses to provide a service known as Retargeting. We do not link the information we store in cookies to any personally identifiable information you submit while on our site.
An Internet Protocol (IP) address is automatically assigned to your computer every time you establish a connection to the internet. My life diary comes under a blogger.com domain so the blogger.com uses your IP address to help diagnose problems with our server to administer our website.