Google+ is making it easier for you and your website visitors to share information. Now, you can install a Google+ sign-in app much like the one that Facebook has. So your site visitors and app users can sign in without signing up.
Welcome to the future of the Web.
I think this is the way the Web will work for the foreseeable future. If you use the Internet in any way, you’ll likely be signed in to your Google+ account, your Facebook account, or another social media account, or all of them. Then, when you visit another website that you like and respect, you can sign in to those sites using your Google+ or Facebook account.
When you first sign in to a third-party site using Google+, you’ll be asked what people in your circles you want that site to know you have a relationship with. You’ll also be asked who you want to share information with on that site. You can opt for all your circles, select circles only, or just yourself.
Social media marketing is changing. I’d say for the better. And the Google+ sign in is just another piece of evidence to prove it.
The question, now, for webmasters is, should you implement the Google+ button on your site? I don’t see how you can lose.