In the latest Google update some of the filtered sites have already reappeared. Just because you are filtered out does not mean it will be perminant. There are a few things I would recommend doing to "naturalize" your linkage profile.
- Deep link: Work a decent number of deep links into your linkage profile.
- Don't buy too many sitewide links.
- When you buy sitewide links: try to get the people who link to you from their site to link to a presell page on their site from every page of their site and then link from that page into various points in your site.
- Mix your anchor text: If you own a keyword rich domain that will naturally pick up a ton of linkage data ensure that when you build links you use various semantically related terms whenever possible. (Using Google Sets or the Google: ~ search function would be an easy way to find a few semantically similar search terms).
Part of the Doing SEO in a Vacuum article by Aaron Wall
here..
Search Engine Optimization Blog Article...