Jaana Nyström a Google Top Contributor on the G+ side, has collected some of the best articles and posts about the use of Google+.

Unfortunately I can't find a way to embed the resource here, so you need to click to read it.

The Best Google+ Help & Resources

Below is an overview of everything that's included, but you need to click over to get all the links for each topic.

GOOGLE+ IN GENERAL

1) Official Google+ Help & Support by +Google+ Help

2) What is Google+: A complete user guide by +martin shervington

3) Having trouble circling people on Google+? by +Jaana Nyström

4) Getting started on Google+ by +Computerworld

5) Hangouts: Messaging and video calls basics by+Ronnie Bincer

6) Organize your Circles by +Gplus Helper

7) The anatomy of a perfect Google+ post by +Dustin W. Stout

8) Control your notifications by +Jaana Nyström

9) 12 most helpful Google+ pro tips by +Peg Fitzpatrick

10) Google+ and your Photos – a tutorial

11) The Personalized Power of Google+ Plus Ones by+Mark Traphagen

12) A nice resource of links to Google+ treasures by+Jack Humphrey

Featuring advice from +Demian Farnworth +Chris Lang +Yifat Cohen +Stephan Hovnanian

+Andrij Harasewych +Carol Dodsley

13) TIP: Create a private community for saving and storing data by +109164280656499

LEARN MORE FROM GOOGLE

1) Your Profile

2) Circles

3) Photos

4) Events

5) Hangouts

6) Mobile

7) Local

VIDEOS

1) Google+ Tips-The Seven Habits of Highly Effective Google Plussers

2) Kick-Starting Social with Google+ (Business)

3) Google Drive SDK: Drive/Google+ photos integration

4) Google+ Notifications & Privacy Settings

5) How To Disconnect You Youtube Account From Google+

6) Has Google+ Improved Your Ranking? – Tuesday G+ & Topics HOA (Business)

7) Five Cool Ways to use Google+ for Photos | USA TODAY Talking Tech

8) How to Change your YouTube username and Channel name (with Google+) September 2013

9) Beginner’s Guide To Google+ For Business – The Girls Mean Business with Jenny Braithwaite

BUSINESS AND GOOGLE PLUS

1) Google+ and your business by +Google+ Your Business

2) Google+ business Pages tutorial by +martin shervington

3) How to Verify your Business Page on Google+ by+Jaana Nyström

4) Google Apps for Business by +martin shervington

5) Official Google Apps help & support by Google

6) Google+ and SEO by +Kristi Hines

7) Google+ personal profile or business page? by+Jaana Nyström

8) 12 Most Creative Ways Businesses Can Use Google+by +Stephan Hovnanian

9) The Business Guide to Participating in Google+ Communities by +Kristi Hines

10) Official Google Authorship: Link your Google+ profile to the content you create by Google

11) Author or Publisher: rel=author or rel=publisher: Which Should I Use? by +Mark Traphagen

12) Ways to Use Google+ Events for Your Business by+Lisa Peyton

STATS, TOOLS AND LISTS ON GOOGLE PLUS

1) Your Google+ settings

2) Google+ popular verified users list by +CircleCount

3) Most popular Google+ communities by +GPlusData

4) All your + statistics by +Gerwin Sturm

5) Manage your circles by +Circloscope

6) See your posts and comments on Topsy

7) See your posts in Timeline format by +Jari Huomo

SCHEDULE AND SHARE

+Do Share for pages and profiles

+Buffer and +HootSuite for business Pages

+Friends+Me shares from G+ to other social media

HELPFUL COMMUNITIES

1) YouTube & Google+ Integration Community

2) Official Google+ Discuss by +Google+ Help

3) Google+ Helper Community

4) The G+ Resource

5) Google+ Pro Tips

6) Google+ Updates

7) Closing the Google+ Gap

8) Google+ Photographers

9) Hangouts on Air

10) GooTubePlus

11) Plus Your Business

12) Google Authorship & Author Rank

13) Google Plus for Small Business

14) Google Sites

15) Blogger

16) SEO Community:

17) AdSense

18) YouTube Live Streaming