First lets start with a diagram.
This is a webpage that I used in another thread as an example. When my site started it got indexed with a few articles and was ranking in the lower 20's. I then sent 10,000 profile links and 10,000 blog comments at the site in 1 day. As you can see it then plummeted for about 2 weeks to the 300's and then I did my method and BAMM! Back strong! Now ive had a steady rise but the site just wasn't getting to the top 5 like I wanted. Then I blasted the hell out of the page again, it went up to #7, then to #10 then to #295, Sandboxed again! Now at this point I wrote in another sandboxing thread how I guarantee I can get my site out of the sandbox and back to #5. You can check out the discussion here Sandbox Discussion. I then did my method, the site flew out of the sandbox hit around #7 again which was disappointing, I just blasted some more links and it hit #5 then "sandboxed" again. Now ive seen my site hit #5 before going to the sandbox. Basically id be happy with a #5 ranking to where I don't need to play the sandbox game in order to push my site up the rankings anymore. I will now use my methods to bring the site out of the sandbox once again and have it stay at #5, then slow my link building to where I can slowly climb from there.
Im showing you this so you can see im not just blowing smoke. I use Googles sandbox as I way to be able to pound tons of links to gain better rankings. Then I use my methods to pull it out of the Sandbox. Im not recommending this as a good link building method because it takes a strong person to stomach the huge sudden drops especially when you had page 1 rankings and tomorrow Google could change its algo and I might not be able to pull myself out anymore.
My idea behind what the sandbox is that you have this incredibly vast algorithm that has to literally deal with every single collection of letters, numbers and sort webpages in some order that will give a quality result. Now lets say you take a search term "black leg warmer for dancers". Hypothetically this robot maybe has a collection of about 5000 times that its seen this exact phrase in anchor text. Now someone goes and throws 20,000 links all with that phrase or something extremely similar at the robot all going to the same page.
Now if I were sorting threw something physically id take that thing that was getting lots of votes and put it to the side. Then i'd reorganize everything that didn't change and then find where to place this newly popular thing, this is somewhat similar to the google dance. I think we all like to believe Google is better then it is. Maybe it takes time to reorganize this, especially for these niche phrases that Google probably doesn't care much about and possibly more time then we like to believe the almighty Google could possibly take. Combine all that with a little bit of wanting to hide the algorithm to possible spammers and analysts. The difference between the dance and the sandbox to me though is a temporary penalty, I don't believe Google has permanent penalties other then de-indexing. These temporary penalties are there I feel to scare you off from preceding with your link building if you are indeed a spammer and all that to me is TADA!!! THE SANDBOX!!!
So how do you get out of the sandbox? Well heres my method, it works for me almost every single time, but then again I build links my way so maybe your building methods won't work the same way.
Google wants to see varied link building schemes. So like I said earlier I took my site and pounded 10,000 blog comments and 10,000 profile links. Maybe you got an Xrumer package from a fellow warrior that sandboxed your site. Now what you'll need to do is basically equal out your link portfolio to Google. If you have built 10,000 profile links that sandboxed you then you're gonna need to start pounding Senuke and AMR to get tons of web 2.0 and article directory links to eventually even out your sites link portfolio and have Google say "ok penalty lifted" and BAM now all those links you ever built start counting. This works like a charm if you were sandboxed for spammy blog comments and profile links.
Now its a bit more difficult if its the other way around and you were sandboxed due to articles or web 2.0s. Usually this only happens if your site is very new and you really pounded it with links out of nowhere. I feel its much harder to get sandboxed for these types of links so if you did, congratulations you really made a splash! Like the previous method I would start trying to even out the link portfolio with some blog comments and xrumer blasts but be somewhat careful as these can do as much harm as good. Go a bit more slowly then you would the other way around. Now you are also going to need more varied articles. Things like Article Ranks, UAW can definitely help. With constantly drip feeding more articles you will be showing Google that your site is still building these quality links. If you can afford Build My Rank or Linkvana, they will offer high PR links that will really get Google to lift that temporary penalty.
All in all your site will probably come back on its own but it could take months. So using these techniques can speed it up. If people are interested in this thread I will report back and show you how my example website will be back on page 1 whenever I decide I want it to as further proof that this works. Sorry for the incredibly long thread but I hope this helps some people. Id love to see more warriors contributing quality to the community instead of pretending their secrets are black magic or something.