I was looking in Google Webmaster tools, and I found a new "+1 Metrics" section. I did a little e reading and found this interesting Q&A:
"How often will Google crawl my +1'd pages?
+1 is a public action, so you should add the button only to public, crawlable pages on your site. Once you add the button, Google may crawl or recrawl the page, and store the page title and other content, in response to a +1 button impression or click."
Does this mean that all we have to do is +1 a page to get it indexed? We will have to put that to the test. Has anyone experimented with this? What are your thoughts?