Earlier this week, 360i did a great comparison of 40 retail keywords in both Google Caffeine and the current Decaf Google search infrastructure and found that keyword rankings are definitely being mixed up.
I just posted my analysis of this research on eWEEK, but it begs for some visuals, courtesy of 360i's Mike Dobbs and SEO Analyst Martha Mukangara.
Here are the keywords they tested in both Caffeine and Decaf, including brands such as Wal-Mart and items such as shoes and laptop computers for sale:
Check out the keyword ranking fluctuations for the terms:
Here is how the difference in social media listings between Caffeine and Decaf:
360i has a lot more graphics to show the differentiation between Decaf and Caffeine, but I don't want to copy them all here.
I send you now to the blog post from 360i to see the increase in index size, or "competition," of single keyword search relevance; the boost in relevance for long-tail searches; and the blended results disparities between Caffeine and Decaf.