About 3 months ago I started with one niche and 3 new websites. All 3 websites added in Google Webmasters Tools (I can track links there). And all that 3 websites now are in sandbox or whatever is that (disappear from search for main keyword). After that I make another 2 websites, same niche - two different keywords. Didn't add sites in GWT. After much harder link building both sites are in search results one at second, another at third page. Simple question - did GWT can affect to my websites at that way? Google I'm cheat you with link building, check out my websites now! I will add 2 more websites in GWT and make another test now. Did you have some experience or same problem?