What to do with lots of sandboxed domains?

[phil9922]

I have been working on a project lately generating lots of sites, all on their own domains. Google must have caught on because I noticed today that 72 of them are no longer indexed. For all of these sites, searching google for site:domain returns nothing, on some of them link:domain returns nothing as well. Other sites on the same IP are still indexed and ranking. Does this mean I'm sandboxed, or are the sites banned?

Is there anything I can do with these domains to either bring them back or use them for a different purpose instead of just letting them sit around til they expire?

Also, any ways to prevent that from happening to my sites that are still ranking?

I cant sit around and manually link build. There are 100s of these sites and if they keep getting dropped I don't have the time to do that.

 

[Gonka]

You should've been much careful before setting up these sites. We've learned them the hard way.

Make sure you are using different IP classes, different DNS, different WHOis. different templates, content that can pass copyscape.

As far as those sandboxed domains, just take them offline, and try to use them after 3-6 months again with new content. You might be able to get them re-indexed.

 

[HarveyJ]

If they look like good domains... sell them on DP