When this last index finally stabilized, I had a couple sites with top five rank for 4-5 great search terms. I've worked hard to get them there and was very pleased with this months reindex......then

The last day or two I noticed my sites are completely gone from the google index!

I know that there was nothing on the pages that would cause Google to ban me (I've played by the rules).

Anyone have any ideas why this would happen....I'm kindof getting worried about my other sites and their rankings......