Old Backlinks Can Shorten Your Stay In The Sandbox
Many SEO’s are quite certain that search engines consider the age of backlinks when they are determining link relevancy. I agree with this idea because it is only logical that they would consider older links more trustworthy since they are less likely to be from greyhat sources like Link Vault (which, according to RustyBrick, apparently has been banned by Google) and Digital Point.
This age factor has even been suspected as a key factor in determining the amount of time that a new website spends in the sandbox. If this is true, and you are certain that your site is sandboxed, rather than wait for it to naturally pull itself out, use your time to build permanent links. Obviously, you should go for the low hanging fruit first (directories that pass on page rank and are human reviewed) then focus on higher value permanent links. Get the links early so that they can age and increase their value, and this should shorten your stay in the sand box.
Also, I suggest that if you must pay for a link, you should only agree to long term links. Either purchase a permanent link or rent for an extended period of time. As these links get older they will look more natural, and as I’ve mentioned a dozen times, search engines love natural links.
Good Luck