What are some good link building methods that you have used that have helped you dig sites out of Googles sandbox?
in my opinion, there is nothink to get out a site from google sandbox. you must only wait google to get out it from sandbox
From what I've seen, building to many links will put you there if your domain is new. I really don't think there is a way to dig a site out, especially when Google buries it!!
You have to build more back links and try to use another anchor text than the ones you have been targeting and make it look organic and then you will recover, otherwise if your site is new then you have to give it more time, it's up to Google and you can't do any thing about it.