The battle between Google and those trying to artificially manipulate its search results is an ongoing battle. Google on March 19th took down one of those blog/link networks named BuildMyRank.com.
BuildMyRank.com confirmed Google has deindexed an “overwhelming majority” of their network as of March 19, 2012. The management of BuildMyRank.com has decided to immediately shut down their service and provide refunds to customers.
BuildMyRank.com thought that Google would allow their network since they felt they provided “better quality service,” which was a “bit different from other networks.” But as they admitted on their blog, “this was not the case.
The bottom line is that Google has been cracking down for awhile now and its a new era of SEO. You need to create good content, include videos and work harder to obtain links then in the past.
Jennifer Ledbetter at PotPieGirl has a lot more on this network being hit by Google on her blog. It might also just be one of several networks hit.