Check out this SEO video tutorial on Google's supplemental index. What could cause your webpage to fall into the supplemental index? There's duplicated content, content taken from other sites, too many query strings in the URL, etc. See what you can do to get them out of Google's supplemental index, with some good search engine optimization.
Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.