I have made a couple observations over the last days,

and I am PRETTY SURE how to get a site INTO supplemental index.

Buy it some (many) blog posts from PayPerPost and let them deep-link

into your site.

Whoppa – a couple weeks later those pages get SUPPLEMENTAL.

Only requirement for this to work – the mark “* Sponsored Post *” or some of those PPP images

besides the post.

there you go.

Another supplemental related issue is, that a couple of ways to VIEW if pages are supplemental (using the site: command) were broken in the last 2 weeks.

Just a couple days ago Aaron Wall fixed his SEO4FF toolbar after I mailed him that the cached and supplemental counts were all the same.

And yesterday another friend mailed me about his site losing so much traffic… what I found was that 188 of 196 sites were supplemental… dammit… that hurts a lot!

What do you think?

Tomorrow I need to checkout this super resource on supplementals