According to Google, Google+ isn't a social network. It is an ongoing social project that combines numerous social services into a convenient collection. Similar to what has been shown when Google Profiles were released; Google+ will have sections for profile information (About), photos, videos, and the equivalent of the Facebook wall, known as the "Stream" and Buzz, Places, Latitude Check-ins, or Offers.
Other added features of Google+ are below described:
+Circles: The Circles feature is Google's way of differentiating themselves from Facebook. It allows you to group your online connections, so as not to share everything with everyone. You may choose with whom you wish to share your posts.
+Sparks: You can share your interest with everyone.
+Hangouts: will become an online set of live communications tools for real-time chatting. It will incorporate live, multi-person video chatting for up to 10 people, as well as traditional instant messages.
+Mobile: is a set of features for mobile sharing.
Google is testing the service with "a small number of people." If you want an invite, you sign up here.
For more knowledge about Google+ please go through the below Articles and Videos:
http://searchenginewatch.com/article/2082403/Google-1-Spreads-Around-the-World
http://searchenginewatch.com/article/2082411/Social-Networks-Grade-Google-Project
http://searchenginewatch.com/article/2082406/Google-Tries-Again-to-Get-Social-With-Google-Project
Related YouTube Viedos:
The Google+ project: A quick look
The Google+ project: Instant Upload
The Google+ project: Sparks
The Google+ project: Huddle
The Google+ project: Circles
The Google+ project: Explore Mobile
The Google+ project: Explore Circles
The Google+ project: Explore Sparks
The Google+ project: Explore Hangouts
The Google+ project: Explore Settings
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