Google +1 what does it mean

This comes from Axandra search info:

What is Google's +1 button?

The +1 button is Google's answer to Facebook's "Like" button. It is a button that you can add to your website.

When one of your website visitors clicks the +1 button, your website URL appears on the +1 tab on the user's Google profile. Google wants website visitors to click on the +1 button when they find something interesting or recommendable.

What does Google do with the +1 clicks?

For people who are logged in to Google, their search result snippets might be annotated with the number of +1's that the listed page has received.

If someone who is connected to you through your Google account (Gmail chat list, contacts, etc.) clicked the +1 button, then the name of the person might be listed next to the search result snippet.

Google also announced that the +1 button will influence the search rankings of a page. The number of +1 clicks and the person who clicks on your +1 buttons might influence the position of your pages.

As it is very likely that spammers will try to use the +1 button, Google will perform tests before the +1 button has a major influence on the search results.

According to Google, the number of +1 clicks can also influence the position of an AdWords ad for the page with the +1 button.

How can you add the Google +1 button to your web pages?

It is very easy to add the Google +1 button to your web pages. The button is available in different sizes and different formats.

You can view examples and instructions here: How to add the Google +1 button to your web pages

What is Google's +1 button not?

The Google +1 button is not the same as the Google Buzz button. However, many sites have already replaced their old Google Buzz button with the new +1 button.

It is likely that Google Buzz functionality will also be added to +1. Google also announced analytics for the +1 button to show webmasters info on geography, demographics, content, and search impact.

Although Google's +1 button does not have a major impact on the position of your web pages in Google's search results yet, it does not hurt to add the button to your pages.