A few quick slides explaining what Google Plus is, why you should be involved and then a few links to resources to get going. By Grant Wickes.

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Twitter: http://www.twitter.com/gwickes
LinkedIn: http://www.linkedin.com/in/grantwickes/
Learn more: http://about.me/grantwickes

Just you wanted. Another social network to engage with. Normal reaction especially when you think you have all the social networks you need.

Worst thing to do is approach G+ like its FB.
Facebook is really about your family, close friends. Things that happen to you and to the people you care about -- like a water cooler gossip conversation.
You should approach G+ differently and not with the same expectations or approach as you do FB

Google Plus is driven around people passionate about certain interest -- photography, writing, airplanes to name but a few.
Augmented with easy to find and join communities.
In the end, you can participate, follow and engage with whomever you are interested in.

Okay you reluctant, skeptical one... read on

Learning -- you like to learn. G+ is filled with knowledgeable folks and businesses contributing information around topics that interest you
Engaging - G+ encourages and works best when you get involved. Extending conversations and thoughts with your comments and posts
Sharing - G+ allows you to share publicly (anyone can see) to just an individual, or small group like your immediate family. Or share and extend someone else's post and highlight the content with your thoughts and opinions.
SEO - its kinda built in. G+ is all about providing SEO benefits

Start with your gmail and set up a profile
Create your tag line -- an interesting 5-7 words that quickly tells someone who your are, your interest
Fill in the entire profile page -- people will read this to understand who you are and if you're someone that interests them
Next get the best damn headshot you can -- it is the single most recognizable image you will have on G+. Make sure it represents who you
Then the fun starts... build up circles. G+ will recommend folks to follow (add to a circle) based on info it reads on your profile (so fill it out well). You can have any number of circles. People can be in multiple circles. Build them. Tear them down. Redo. Its your way to manage the way you receive and share information.

Get ready to have some fun. Go crazy. Make mistakes. The field is wide open and folks are more than happy to "play" with you.

Some of the key folks I follow and have great respect for. They share. They help. They encourage.
Recommend you circle (follow) each one and visit the links to see the info they provide to get you going.
Scott Buehler http://goo.gl/7TLs0
Denis Labelle http://goo.gl.gd9fM
Martin Shervington http://goo.gl/cRxhM
Mark Traphagen http://goo.gl/9ohHT
Ronnie Bincer http://goo.gl/6MStq

And if you'd like, please circle to follow me: Grant Wickes http://goo.gl/7soka