Do new sites get sandboxed for all keywords or just competitive keywords? If your sandboxed does that mean you don't get on the first search results page or all search results pages? How long does it usually take for a new site to get out of the sandbox? Will more backlinks get you out of the sandbox quicker?
competitive ones only...about to get out of the sandbox, (according to my experience) you'll require 2-6 months based on the competition itself.
New sites sendboxed for competitive keywords only, After you get picked up by Google Sandbox it can last anywhere from 6 months to a year and a half for your site to be out of Google. More popular your keywords are more chances you have to be in a Sandbox for a longer period of time. Can you escape Sandbox? I can’t say that because nobody can say that for sure. My suggestion would be to build on your backlinks and overall popularity of your website or a blog. Never rely only on Google, there is a lot of work to do on Yahoo and MSN and I can bet anything you want not all of your traffic comes from search engines unless you run MFA sites. If you get sandboxed there’s nothing you can do about it. Deal with it and continue to develop your website because as soon as you get out of it you’ll rank for your keywords.
The Google Sandbox is an alleged filter placed on new websites. The result is that a site does not receive good rankings for its most important keywords and keyword phrases. Even with good content, abundant incoming links and strong Google PageRank, a site is still adversely affected by the Sandbox effect. The Sandbox acts as a de facto probation for sites, possibly to discourage spam sites from rising quickly, getting banned, and repeating the process.
With regards to the sandbox, can sites come out of the sandbox only to go back in? http://forums.digitalpoint.com/showthread.php?t=681813