Google introduces a new +1 Button
The +1 button is shorthand for “this is pretty cool” or “you should check this out.” Click +1 to publicly give something your stamp of approval. Your +1’s can help friends, contacts, and others on the web find the best stuff when they search.
How does this really work?
Sometimes it’s easier to find exactly what you’re looking for when someone you know already found it. Get recommendations for the things that interest you, right when you want them, in your search results.
The next time you’re trying to remember that bed and breakfast your buddy was raving about, or find a great charity to support, a +1 could help you out. Just make sure you’re signed in to your Google Account.
In order to +1 thing, you first need a public Google profile. This helps people see who recommended that tasty recipe or great campsite. When you create a profile, it’s visible to anyone and connections with your email address can easily find it.
Your +1’s are stored in a new tab on your Google profile. You can show your +1’s tab to the world, or keep it private and just use it to personally manage the ever-expanding record of things you love around the web.
Take Home: In short this is a new personalization feature by Google, that allows you to recommend and share your personal favorites that helped you find something while you searched so that it could further help someone in your contact lists. Just in case you had a question, this will have zero effect on SEO anyways.
Watch the preview on YouTube: