What are Google Circles?:
In addition to customizing your Circles to fit with how you interact in real life, you can also personalize how your profile appears to each Circle you create, i.e., relationship information can be kept separate from a work profile.
How to start a Circle:
How to find people to put in your Circles:
What is an "extended circle"?:
How to add people to your Circles:
- From Google's suggestions found in your Stream
- By clicking on someone's Google+ profile
- Via the "Circles" icon at the top of the Google+ homepage
Editing your Circles:
- To block someone: Click on the "Block" link next to a name
- To remove someone from a Circle: Click the Circles icon, find the person you want to remove, and click "Remove".
- To delete a Circle: Click your Circles icon, double-click on any Circle icon, and select the "Delete This Circle" option.
Google+ Circles and Privacy Issues:
- Content you share with a specific Circle can be shared beyond who you intend if they share it in their Circles.
- Even though you delete a Circle, content you have shared is still visible in the Streams of that Circle.
Google+ Circles and How They Work:
Because relationships are at the core of any social networking service, Circles aims to make sharing with the people in your life as intuitive as possible. Users can create Circles based on their connections, and then choose which content they want to share with those Circles.
For example, say you have three circles: Family, Work Colleagues, and Knitting Club. You can create a separate Circle for each of these groups, and share what you want with each of these groups. Your Work Circle doesn't see what you are sharing with your Family Circle, and your Knitting Club Circle doesn't see what you are sharing with your Work Circle. This is one way to make your content as relevant as possible to the ones it will matter the most to.
Simply put, Google+ Circles helps you organize your personal list of contacts in a more meaningful way, based on how you interact with those people in daily life.