Networking means transferring data from the server to the client. The client data can be sent to the server. Other servers can also receive data via networking.
It means they lack social conveyance.
Yes
You can decorate your profile on Gmail. You can add themes to your account. A Custom wallpaper could also be added.
Gmail Buzz was discontinued by Gmail. However it was opened for people to get their stuff out of it. It was the social network of Gmail in it.
No if someone just visits your gmail profile they will not be able to see all of your individual emails.
Gmail can be used to get Emails mainly. It can also be used to get messages from hangouts. It is a complete networking service.
You can add photos to your Gmail profile background easily. The background can be changed in the themes bar. You can select the theme that interests you.
Yes you can get an answers account with Gmail. You have to login via Gmail or Google Account. It asks you to create your Google+ profile as well.
No, you can't make an avatar. It's just an emailing system. So, u can make avatars on yahoo!!
GMail is an e-mail service provider and not a social networking site and so there is no way you can find someone on GMail. You can communicate with anyone in GMail only if you already have their e-mail address.
Google Buzz was a service introduced in 2010. It was a social networking and messaging system. The service was integrated into Gmail for use.
Gmail is not a social networking website. You cannot look at other's profiles easily. Thus you have to find the email ID to contact them.