Google has removed their supplemental index which should mean more pages in the general index which equals more overall traffic for your web site. Before, Google used the supplemental index to classify web pages that did not have enough mustards (links) and/or content (duplicate) to meet he standards of the main Google index.
Google had this to say:
The distinction between the main and the supplemental index is therefore continuing to narrow. Given all the progress that we’ve been able to make so far, and thinking ahead to future improvements, we’ve decided to stop labeling these URLs as “Supplemental Results.” Of course, you will continue to benefit from Google’s supplemental index being deeper and fresher.
There were pros and cons to the system. Well now it has been removed, which brings to light another set of pros and cons.
Pros and Cons of Removing the Google Supplemental Index
Pro: More content should show up in the SERPS for your sites. I’ve noticed increases all around for traffic for many web sites. Of course, this doesn’t mean that the quality of the overall index goes down, just that your selection should increase.
Con: Duplicate content will start showing up more in searches. Supplementals was a way to get rid of similar content. We’ll see how Google repsonds.
Con: Google may solve the above problem but issuing more duplicate content penalties. Uh oh, that means pay even closer attention to your content.
Con: You can’t detect with ease the pages that require more link juice. If you really want some cool content that’s a bit older to rank then you need more links to that content. It’s tougher to figure out what’s needs the most attention without the supplementals.
Can you think of anymore?
[tags]google supplemental, supplemental index, google supplemental index, google index[/tags]