http://www.infinite-scroll.com/
Infinite scroll has been called autopagerize, unpaginate, endless pages. But essentially it is pre-fetching content from a subsequent page and adding it directly to the user’s current page.
Problem Summary:
User is browsing paged content.
Use When:
- Retaining the user is important and clicking “Next Page” is a usability barrier.
- The full content available is too large to show on initial load.
- The content is available in paged chunks: search results, blog posts, product listings portfolio features.
Advantages:
- Users are retained on the site far better.
- Users are less likely to continue on to the next “page” if they have to click something versus it being delivered automatically to them. [citation needed]
- Requires no adjustment in a user’s typical reading habits.
- The added functionality needs no affordances or instruction.
- As long as the functionality is enhancing an existing navigational structure (like the wordpress plugin here), it remains SEO-friendly and Accessible. It will degrade gracefully if a user does not have JavaScript enabled..
Disadvantages:
- The “footer” of the page will be typically impossible to reach.
- Currently there is no way to cancel or opt-out of the behavior.
- There is no permalink to a given state of the page.
- Dynamically adding more content to the page increases the memory footprint of the browser. Depending on the browser, this could account for around 50megs of RAM.
- Analytics will not immediately capture the event, so custom configuration is required.
http://www.infinite-scroll.com/