I ran a test on one of my sites, using a backlink service and it subsequently vanished from the first page. Using this I am going to test it on other sites. Question is: If site b (not mine) doesn't vanish, what does this mean? If site b (ranks better for said keyphrase) why did mine disappear If site b disappears (I can use this against more sites) What is the limit for new links over time, how can Google determine whether or not this is legit? Also see above questions. Once I have some more answers I will ask more questions, such as is Google one huge spy tool which tracks my footprints? Said keyphrase isn't that competitive and is part of a competition. So I am doing a lot of testing.