engine - 3:00 pm on Feb 14, 2014 (gmt 0)
Your site’s news feed or pinboard might use infinite scroll—much to your users’ delight! When it comes to delighting Googlebot, however, that can be another story. With infinite scroll, crawlers cannot always emulate manual user behavior--like scrolling or clicking a button to load more items--so they don't always access all individual items in the feed or gallery. If crawlers can’t access your content, it’s unlikely to surface in search results.
To make sure that search engines can crawl individual items linked from an infinite scroll page, make sure that you or your content management system produces a paginated series (component pages) to go along with your infinite scroll. Making Infinite Scroll Search Crawler Friendly [googlewebmastercentral.blogspot.com]
You think infinite scroll is cool? Search-friendly infinite scroll is even cooler! Crawling the infinite scroll [googledevelopers.blogspot.com] With some implementations of infinite scroll, crawlers aren’t great at scrolling down or clicking “load more”, so they may not crawl items displayed after the initial page load. To help the crawler see all the content, we recommend converting the infinite scroll page to paginated series by using the HTML5 History API. (Of course, the pagination is seamless to the user.)