Google+

Google+ if a free social networking tool and identity service:

Profile (hide / show profile information and see how your profile looks to everyone else)
Collections (your interests - featured, followed, yours)
Communities (recommended, member, yours)
People (find people, following, followers)
Settings

For customers to show their appreciation with ratings and reviews

+1 Button to endorse your content, and re-share your Google+ posts across the web.

It is valuable if your business's local website or blog leverages SEO for purposes including news, images, shopping, maps, videos, and books.

Tools / Tips

Hashtags and GYBO
- Too much hashtagging can come across as #needy
- Write with relevance and +1 the posts you identify with
- Posting hashtags when responding to a post is a no-no
DoShare - Chrome Extension
- Write and schedule your Google+ posts
- Works for personal Google+ profiles as well as Google+ pages
- Easily share links to Google+ from any tab on Google Chrome
- Create a post, and schedule it for later, Do Share will automatically send it
- Supports sharing to circles, +mentions, notifying circle, link sharing, reshares, and photo uploads
- Supports sharing to Google+ communities
- Supports Hashtag autocomplete
Pro tip: Post in Google+ to multiple communities, people, and collections
Google+ Explore