cloudtap - 2:19 pm on Dec 29, 2010 (gmt 0)

It seems as though the buying of links and the ranking of landing pages / pages of your site has an echo effect in the search algos. You can get rid of hundreds of links to a site and the site will keep its ranking based upon historical data in Google until 1 or 2 Google updates later. It seems as though you can boost your rankings fairly quickly and then get rid of the links and your site's ranking will echo for months to quarters of the year